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Topic: Bank switching


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In the News (Sun 15 Nov 09)

  
  NationMaster - Encyclopedia: Bank switching
Bank switching (also known as "paging", but only loosely related to the ordinary meaning of "paging" in computing) was a technique common in 8-bit microcomputer systems, to increase the amount of addressable RAM and ROM without extending the address bus.
Bank switching was later replaced by segmentation in 16-bit systems, which in turn was replaced by paging memory management units.
Bank switching (also known as paging, but only loosely related to the ordinary meaning of this term in computing) was a technique common in 8-bit microcomputer systems, to increase the amount of addressable RAM and ROM without extending the address bus.
www.nationmaster.com /encyclopedia/Bank-switching   (1414 words)

  
 BANK SWITCHING
Um Bank Switching zu ermöglichen, wird entweder der gesamte oder auch nur ein Teil des Speicherbereichs reserviert.
In diesen reservierten Speicherbereich (Bank) wird jeweils ein entsprechend großer Bereich aus einem anderen Speicher eingeblendet.
Bank Switching wurde bereits bei frühen 8-Bit Computersystemen eingesetzt, z.B. dem C64, da diese nur 64 KiB Speicher adressieren konnten, viele Firmen aber 64 KiB oder noch mehr RAM und zusätzlich auch noch ROM einbauen wollten und teilweise Memory Mapped I/O verwendeten, welches beides auch Adressraum belegt.
www.toonorama.com /encyclopedia/B/Bank_Switching   (299 words)

  
 Checking Capacitor Banks for Failed Capacitors
Shunt capacitor bank switching transients are often a concern for utility and industrial engineers that are planning to apply capacitors at the distribution voltage level (4.16 kV through 34.5 kV).
The capacitor bank is equipped with 0.040 mH transient inrush reactors to limit the frequency and magnitude of the transient currents associated with back-to-back capacitor bank switching.
Due to switch variations, and possible pre-strike conditions, phase A and phase B vacuum switches are assumed to close prior to the phase C switch.
www.nepsi.com /transients.htm   (1615 words)

  
 Method and apparatus for quick acquisition of pilot signals using bank switching method US Patent 6091762   (Site not responding. Last check: 2007-11-05)
Using multiple banks, the system resources such as the dwell accumulators and the DSP are used concurrently to reduce the time required to test the phase delays of the short code to lock on to a base station.
In this example, bank A 76 is given the control of the resource 72 first, and the resource 72 dwells for N chips at the delay of D.sub.a as indicated by block 61.
When the energy of the accumulant of bank A 76 or of the accumulant of bank B 78 exceeds the accept threshold, the process is halted and the delay, or the phase, of the code used to despread the chips for said accumulant is considered to be the base station delay.
patents.nimblewisdom.com /patent/6091762-Method-and-apparatus-for-quick-acquisition-of-pilot-signals-using-bank-s   (4786 words)

  
 Bank switching at opensource encyclopedia   (Site not responding. Last check: 2007-11-05)
Bank switching (also called paging) was a technique common in 8-bit microcomputer systems, to increase the amount of addressable RAM and ROM.
Some DOS extenders in the late 90's used a form of bank switching technique to access the high memory area above the 1MB limit that the realmode for x86-processors made aviable.
Bank switching was also utilized in video game consoles.
wiki.tatet.org /Bank_switching.html   (164 words)

  
 Bank Switching   (Site not responding. Last check: 2007-11-05)
They also had to improve the information available to customers and streamline the bank switching process.
Bank switching (also known as paging, but unrelated to the ordinary meaning of this term in computing) was a technique common in 8-bit microcomputer systems, to increase the amount of addressable RAM and ROM without extending the address bus.
It was a form of bank switching technique to access the High Memory Area above the 1 MB limit that the real mode for x86-processors made available.
bank-switching.wikiverse.org   (312 words)

  
 Memory Expansion with the High-Speed Microcontroller Family - Maxim/Dallas
Bank switching is examined beyond the 64kB memory map.
The 74F74 latch causes the new bank selection to be valid on the prefetch during the execution of the second NOP.
Bank control is provided by P1.0-3, decoded by 4 AND gates, requiring only a single IC package.
www.maxim-ic.com /appnotes.cfm/appnote_number/81   (4293 words)

  
 Switching bank accounts
Banks may be better at some services than others so it may suit you to have different kinds of accounts with different banks.
Banks will usually transfer these instructions directly once you have authorised the move but you might want a list of direct debit and standing orders for your own records.
If your old bank, for example, holds deeds to a house as security for a loan it may take longer and there may be a charge for informing the land registrar.
www.tiscali.co.uk /money/features/bank_account_move.html   (1037 words)

  
 System Components   (Site not responding. Last check: 2007-11-05)
Bank switch input card to concentrate signals ahead of a solid state switch matrix.
Other connector cards provide bank switching to concentrate signals ahead of a switch matrix or to expand them after the matrix.
Switch modules are small switch matrices that are bussed in the bottom plane to form a larger switch matrix.
www.pfinc.com /products/prog_patch/4000/system1.htm   (624 words)

  
 Bank switching - InformationBlast
Bank switching (also known as paging, but unrelated to the ordinary meaning of this term in computing) was a technique common in 8-bit microcomputer systems, to increase the amount of addressable RAM and ROM.
It was a form of bank switching technique to access the High Memory Area above the 1MB limit that the real mode for x86-processors made available.
The Atari 2600 could only address 4K of ROM, so later 2600 game cartridges contained their own bank switching hardware in order to permit more ROM and thus more sophisticated games.
www.informationblast.com /Bank_switching.html   (188 words)

  
 Multiprocessor system with program change function controlled by one processor - Patent 5333278
The decoder 114 decodes bank switching signal from the CPU 101 when program data is input so as to output the selection signal to specify one of the RAM's 103 to 106 as the area where the input program data is to be stored.
At this point, the bank switching signal from the output port SEL OUT of the CPU 101 is input to the input port SEL IN of the decoder 114, and selection signals are output from the selection signal ports CS1 and CS2 of the decoder 114.
Therefore, switching between the RAM 105 and the RAM 106 using the bank switching signal enables selective assignment of the RAM's 105 and 106 to the address of the bank switching area in the CPU 101 as shown in the address map shown in FIG.
www.freepatentsonline.com /5333278.html   (3697 words)

  
 Spectrum-Instrumentation: Glossary: Bank Switching   (Site not responding. Last check: 2007-11-05)
In bank switching mode two different signals old the same length are written in the on-board memory.
Controlled by an external bank signal that is individually available for every channel one of the signals is selected for output.
The user can define whether the signal should switch immediately or whether the complete signal should be generated up to the end.
www.spectrum-gmbh.com /index.php?id=480&L=0   (60 words)

  
 circuit switching in TutorGig Encyclopedia   (Site not responding. Last check: 2007-11-05)
Switching is an action described by the verb to switch, in the sense of using a Switch, either an electrical one or other device for flipping, or a switch rod rod called switch.
A switching center is a node networking node in a telecommunications Circuit switching network which is connected to either another switching center and or to end user devices.
Double switching is the practice in railway signalling in particular of cutting the power to a relay...
www.tutorgig.com /es/circuit+switching   (758 words)

  
 Using the GNU Development Tools for 68HC11 and 68HC12: Using Memory Bank Window   (Site not responding. Last check: 2007-11-05)
The memory bank switching is supported in a transparent manner only for the code.
Functions that use the memory bank switching calling convention should be dispatched in one or several memory regions to actually put them in different pages.
The support of memory bank switching for 68HC11 is based on board specific functions which must be provided by the BSP.
m68hc11.serveftp.org /doc/hc11_6.html   (732 words)

  
 The Bank-Switching Functions   (Site not responding. Last check: 2007-11-05)
This is the most desirable structure (if any banking structure can be called ``desirable''), because data can be moved from one area of the screen to another with a simple `mov' instruction.
There are two forms of dual-banking - one where the two bank operations define a read-only bank and a write-only bank, and one with two read/write windows.
For a chipset with only one bank, all three will be declared as entry points to the same function (see the ``tvga8900'' driver for an example).
www.signal42.com /xfree86/3.3.6/VGADriver5.html   (589 words)

  
 C51: BANK SWITCHING COMMON AREA   (Site not responding. Last check: 2007-11-05)
The common area in a bank switching program includes the reset vector, the interrupt vectors and interrupt routines, and other "common" routines.
This is necessary when, for example, your program is executing code in BANK 1 and a serial interrupt occurs.
If the common area wasn't there, the 8051 CPU would not "know" how to switch banks to get to the bank that included the serial interrupt service routine.
www.keil.com /support/docs/164.htm   (175 words)

  
 8051 Toolchain v7.1r1 Release Note
When selecting code bank switching the compiler automatically uses a different segment name convention to allow for proper function distribution over different code banks.
When using code bank switching several limitations holds regarding references and calls between segments located in different code banks.
In EDE this option is enabled by default when code bank switching and map file generation are enabled.
www.tasking.com /support/8051/readme_7_1r1.html   (1384 words)

  
 ECONOMICAL HIGH ISOLATION FILTER BANK SWITCHING
This paper describes an economical way to switch between two filters, with a minimal number of switching elements, (such as PIN diodes), while maintaining high isolation between the filters.
For the filters to perform at their optimum, the switch isolation must be greater than the rejection of each filter at the other's passband.
The simple way to switch two filters is to use a switching element (such as a PIN diode), at the input and output of each filter as described in Figure 1.
www.priorartdatabase.com /IPCOM/000008763   (401 words)

  
 Games Department: VCS Graphics
One "trick" that is often used is a technique called "bank switching." The 6507 microprocessor chip in the VCS can only address a 4K ROM game.
Bank switching has not been used much with the 400 or 800 computer, only because each has enough memory so that it is not necessary to fool the system.
Techniques like repeat register, bank switching, and simply "bludgeoning" a program to get every available byte out of it, have helped reduce the "graphics gap" between the VCS and the home computer.
www.atarimagazines.com /v2n5/gamesdept.html   (947 words)

  
 PSID510   (Site not responding. Last check: 2007-11-05)
A bank-switching routine which is put in a piece of shared memory at $0400-$07FF is used to play the tune.
The tune itself is place in ram bank 1 at $0800.
A player at $E000-$ECFF in bank 1 is used to play the tune.
xanaxis.dyndns.org /PSIDCBM/psid510.html   (390 words)

  
 bank: switching to smile is easy   (Site not responding. Last check: 2007-11-05)
It's really quick and easy to switch your current, smilemore or student account to smile.Over 97% of our customers are satisfied with our switching service.
If the account you want to switch from is anything other than a current account, you'll need to speak to your old bank to request it be transferred.
If the account you want to switch to smile is with another bank, you can do this by using our special letter generator.
www.smile.co.uk /servlet/Satellite?cid=969879721334&pagename=Smile%2FPage%2FsmView&c=Page   (421 words)

  
 Description of the MZ-700's storage management
For this, no bank switching must be performed.
First, bank switching to the RAM at location $D000 will be done by the bank switching command OUT ($E1),A.
You cannot bank switch the area between $D000 and $FFFF if a lock is active.
www.sharpmz.org /mz-700/coremain.htm   (1787 words)

  
 bank switching in TutorGig Encyclopedia
The Nintendo NES contained a modified 6502 but its cartridges sometimes contained a megabyte or more of ROM, addressed via bank switching called a Multi-Memory Controller.
Gameboy cartridges used a chip called MBC (Memory Bank Controller), which not only offered ROM bank switching, but also cartridge SRAM bank switching, and even access to such features as infrared links or rumble motors.
Search for bank switching in Usenet Discussion Groups
www.tutorgig.com /ed/bank_switching   (316 words)

  
 Guide: VBE 2.0 graphics modes
These mode switches are slow, and can be a real performance problem because you will often need to switch banks many hundred times while drawing a complex image.
VBE 2.0 provides a new bank switching mechanism that can be used in a protected mode environment without the expensive switch to real mode.
This code will give you a pointer to the protected mode bank switching function, but you cannot call this directly from C because it uses a special register based argument passing convention.
www.delorie.com /djgpp/doc/ug/graphics/vbe20.html   (759 words)

  
 OLD-COMPUTERS.COM : The Museum
It had a bank switching bug : if you switched the banks and the RAMTOP variable was above 32768, then the computer simply crashed...
It's main difference is that the bank switching bug was repaired.
The memory banks switching in GAMA was used for "tricks", like enabling on GAMA the AY sounds and music in games designed originally for ZX 128, taking game screenshots, enhancing the copy programs and many more things.
www.old-computers.com /museum/computer.asp?st=1&c=463   (360 words)

  
 Plotting pixels in VESA modes
One of the most annoying (but unavoidable) aspects of the VESA standard is bank switching.
The granularity of the card determines how big each bank is. Values that I have seen are 4K, 16K, and 64K, but it is possible to have a bank that is 1K.
This array system is very inexpensive to compute when changing banks (which you shouldn't be doing often anyway), and the only drawback is the memory usage.
www.monstersoft.com /tutorial1/VESA_pixel.html   (918 words)

  
 PSID128   (Site not responding. Last check: 2007-11-05)
A bank-switching routine which is put in a piece of shared memory at $FC00-$FFFF is used to play the tune.
The tune itself is put in ram bank 1, starting at $0800.
The.STR part of the tune is put in ram bank 0, starting at $1E00.
xanaxis.dyndns.org /PSIDCBM/psid128.html   (422 words)

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