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8237A Datasheet

Part Manufacturer Description PDF Type
8237A Intel Multimode DMA Controller Scan
8237A Intel High Performance Programmable DMA Controller Scan
8237A-4BD Advanced Micro Devices Multimode DMA Controller Scan
8237A-4D Advanced Micro Devices Multimode DMA Controller Scan
8237A-4P Advanced Micro Devices Multimode DMA Controller Scan
8237A-5BD Advanced Micro Devices Multimode DMA Controller Scan
8237A-5D Advanced Micro Devices Multimode DMA Controller Scan
8237A-5P Advanced Micro Devices Multimode DMA Controller Scan

8237A

Catalog Datasheet MFG & Type PDF Document Tags

9517A

Abstract: 8237A transfer modes °C) Valid Combinations 8237A-4 P, D 8237A-5 8237A-4B D 8237A-5B Valid Combinations Valid , CYCLE (Notes 2, 3, 10, 11, and 12) Am9517A-4/8237A-4 Am9517A-5/8237A-5 Parameters , Am9517A-5/8237A-5. 11 C5 I Chip Select: Chip Select is an active low input used to select the Am9517A , control signal used by the CPU to load information into the Am9517A/8237A. In the Active cycle, it is an , timing and external control signals for the Am9517A/8237A. The Program Command Control block decodes the
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9517A 8237A transfer modes am9517 AM9517A-4 AM9517A-5 9517A/8237A 9517A/ WF003370

8237A transfer modes

Abstract: 8237A bits to the higher bits will be provided to emulate the page register on the 8237A. · All of the 8237A's operating modes are supported (one exception is explained later). · Also, similar to the 8237A, the Intel386 EX microprocessor's DMA controller is programmed through 8-bit registers. The 8237A DMA and Its Limitations A PC-AT compatible architecture (defined by ISA) incorporates two 8237A , exactly an 8237A. The following section describes situations that may require full compatibility with
Intel
Original
8237a DMA Controller 80C186 microprocessor architecture programming 386TM

i8237A

Abstract: Pin Details of bus controller IC 8282 8237As A F N 00789D 8237A/8237A-4/8237A-5 TRANSFER TYPES Each of the three active transfer modes , in t e i 8237A/8237A-4/8237A-5 HIGH PERFORMANCE PROGRAMMABLE DMA CONTROLLER Enable/Disable Control , . Figure 1. Block Diagram Pin Configuration 2-88 8237A/8237A-4/8237A-5 Table 1. Pin Description , . AFN 00789C 8237A/8237A-4/8237A-5 Table 1. Pin Description (Continued) Symbol A4-A7 tvp , ill usually 2-90 A F N -0 0 7 8 9 D Intel IDLE CYCLE 8237A/8237A-4/8237A-5 becomes
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i8237A Pin Details of bus controller IC 8282 D8237A S237A

SAB8237

Abstract: SAB8237A SAB 8237A, SAB 8237A-5 High Performance Programmable DMA Controller · Four Independent DM A , . The SAB 8237A-5 is the 5 MHz version o f the standard 3 MHz SAB 8237A respectively. 7 4 0 A 3 9 A 6 , Components, Inc. SAB 8237A Sym bol Parameter 8237A M in. Max. L im it Values 8237A-5 M in. 75 0 , SAB 8237A and at least 400 ns fo r the SAB 8237A-5, as recovery tim e between active read o r w rite , Channels · High perform ance: Transfers up to 1.6 M Bytes/Second w ith 5 MHz SAB 8237A-5 Pin Configuration
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SAB8237 SAB8237A 8237A-5 TDQ- A8-A15I

hesd 50

Abstract: 9517a -Pin Ceramic DIP (CD 040) a. TEMPERATURE RANGE Blank = Commercial (0 to + 70°C) Valid Combinations 8237A-4 P, D 8237A-5 8237A-4B D 8237A-5B Valid Combinations Valid Combinations list configurations planned to , 12) Am9517A-4/8237A-4 Am9517A-5/8237A-5 Parameters Description Min Max Min Max Units TAEL , -5/8237A-5. 11 C5 I Chip Select: Chip Select is an active low input used to select the Am9517A/8237A as an I , Am9517 A/8237A' Multimode DMA Controller FINAL Powered by DISTINCTIVE CHARACTERISTICS Four
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hesd 50 AM9517A-4DC

9517A

Abstract: 8237A transfer modes 8237A-4 P, D 8237A-5 8237A-4B D 8237A-5B Valid Combinations Valid Combinations list configurations , 5 MHz for the Am9517A-5/8237A-5. 11 C5 I Chip Select: Chip Select is an active low input used to , Idle cycle, it is an input control signal used by the CPU to load information into the Am9517A/8237A. , for the Am9517A/8237A. The Program Command Control block decodes the various commands given to the , Ready line on the Am9517A/8237A. Memory-to-memory transfers require a read-from and a write-to-memory
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Intel 8237A

Abstract: interfacing of 8237 with 8086 intel 8237A HIGH PERFORMANCE PROGRAMMABLE DMA CONTROLLER (8237A, 8237A-4, 8237A-5) Enable , Parameter 8237A 8237A-4 8237A-5 Unit Min Max Min Max Min Max TAEL AEN HIGH from CLK LOW (SI) Delay , °C, VCc = +5V ±5%, GND = OV Symbol Parameter 8237A 8237A-4 8237A-5 Unit Min Max Min Max Min Max , the 8237A-4, and at least 400 ns for the 8237A-5 as recovery time between active read or write pulses , least 500 ns for the 8237A-4, and at least 400 ns for the 8237A-5 as recovery time between active read
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Intel 8237A interfacing of 8237 with 8086 DMA interface 8237 WITH 8088 8237 interface with 8086 Peripheral block diagram intel 8282 latch interfacing of 8237 with 8085

8237 interface with 8086 Peripheral block diagram

Abstract: AP 67 intei 8237A HIGH PERFORMANCE PROGRAMMABLE DMA CONTROLLER (8237A, 8237A-4, 8237A-5) Enable , the 8237A, at least 500 ns for the 8237A-4, and at least 400 ns for the 8237A-5 as recovery time , 200 190 190 130 120 120 8237A-4 Min Max 225 150 120 120 190 TCY-100 30 TCY-50 170 170 170 170 8237A-5 , 8237A-4, and at least 400 ns for the 8237A-5 as recovery time between active read or write pulses. The , 8237A and up to 5 MHz for the 8237A-5. CHIP SELECT: Chip Select is an active low input used to select
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AP 67

231466

Abstract: AP 67 References to and specifications for the 8237A and 8237A-4 are removed Only the 8237A-5 5 MHz device , 8237A HIGH PERFORMANCE PROGRAMMABLE DMA CONTROLLER (8237A-5) Y Enable Disable Control of , the 8237A and its rate of data transfers The input may be driven at up to 5 MHz for the 8237A-5 , Increment or Decrement Y High Performance Transfers up to 1 6M Bytes Second with 5 MHz 8237A-5 , requirement of 8237A-5 In this case 82C84A CLK can simply be inverted to meet 8237A-5 clock high and low
Intel
Original
231466 8284A clock generator driver 8086 TCYb100 operation of 8237 programmable direct memory access 8085 microprocessor 98237a

B237A

Abstract: P8237A 8237A-4B 8237A-5 8237A-5B 8237A 8237A-4 P. D, ID Temperature RangeBlank - Commercial 0°C to 70" C I « , periods may affect device reliability. OPERATING RANGES Part Number 8237A 8237A-4 8237A-5 T a or Tc T , transfers. The input may be driven at up to 3 MHz for the standard 8237A and up to 5 MHz for the 8237A-5. , 8237A-5. 3 Active Cycle When the 8237A is in the Idle cycle and a non-masked channel requests a DMA , be timed to allow at least 600ns for the 8237A, at least 450ns for the 8237A-4, and 400ns for the
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B237A APX86 74LS373 WF006470

Intel 8237A

Abstract: interfacing of 8237 with 8086 intel 8237A HIGH PERFORMANCE PROGRAMMABLE DMA CONTROLLER (8237A, 8237A-4, 8237A-5) Enable , Parameter 8237A 8237A-4 8237A-5 Unit Min Max Min Max Min Max TAR ADR Valid or CS LOW to READ LOW 50 , count capability. The 8273A-4 and 8237A-5 are 4 MHz and 5 MHz versions of the standard 3 MHz 8237A , clock high time requirement of 8237A-5. In this case 82C84A CLK can simply be inverted to meet 8237A-5 , drive the 8237A-5. DMA OPERATION The 8237A is designed to operate in two major cycles. These are
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Intel 8237 dma controller block diagram MC01 8085AH intel mc01 AP-67 82C84A-5

0CA1

Abstract: 8237A Description The CB_8237A is a four-channel Direct Memory Access (DMA) controller. It is fully programmable , be programmed to provide fixed priority or rotating priority. The CB_8237A Macrocell is designed to be compatible with the industry standard 8237A DMA Controller. Standard Interface Macrocell CB_8237A DMA Controller 0882A/cb_8237a­7/97 1 Signal Description Figure 1. Symbol Table 1. DMA , W Output DMA memory write, indicates a DMA memory write cycle is occurring CB_8237A DREQ0
Atmel
Original
0CA1

intel 8237A DMA Controller

Abstract: dmac 8237A computers and discusses how to program the 8237A DMA controller that is used in these systems. An example , Device DRQx DACKx TCx Memory DMA Controller (8237A) PC Bus Figure 1. System , PC Platforms. DMA on PC/XT/AT Computers The IBM PC design uses the Intel 8237A DMA controller, which provides four channels of DMA. The 8237A has 16-bit memory-address and byte-count registers for , original PC design uses a single 8237A to provide four channels of 8-bit DMA (the PC/XT has an 8-bit bus).
National Instruments
Original
intel 8237A DMA Controller dmac 8237A 000D 008B Engineering Software pc xt

231369

Abstract: 8237A-5 inU. 8237A HIGH PERFORMANCE PROGRAMMABLE DMA CONTROLLER (8237A-5) Enable/Disable Control , Performance: Transfers up to 1.6M Bytes/Second with 5 MHz 8237A-5 Directly Expandable to Any Number of , -Lead Cerdip and Plastic Packages (See Packaging Spec, Order #231369) The 8237A Multimode Direct Memory , memory. Memory-to-memory transfer capability is also provided. The 8237A offers a wide variety of , reconfiguration under program control. The 8237A is designed to be used in conjunction with an external 8
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231369 order 231369

sab 8237a5p

Abstract: 8237ac tio n O rd e rin g code S AB 8237A-P SAB 8237A-5-P P ro g ra m m a b le D M A C o n tro lle r 3 , S IE M E N S ty SAB 8237A, SAB 8237A-5 High Performance Programmable DMA Controller · Four In , th e s ta n d a rd S A B 8237A and up to 5 M Hz fo r th e SAB 8237A-5. RESET Reset is an a s y n c h , a ram e ter 8237A M in . L im it V alues 8237A-5 M in. 50 130 130 130 0 200 100 0 500 2 TCY 300 , 8237A-5 · D ire c tly E xp a nd a ble to a ny N u m b e r o f C ha n n els · End o f Process In p u t fo r
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sab 8237a5p 8237ac

8237A-5

Abstract: DRE01 intJ 8237A HIGH PERFORMANCE PROGRAMMABLE DMA CONTROLLER (8237A-5) Directly Expandable to Any Number of Channels End of Process Input for Terminating Transfers Software DMA Requests Independent , Performance: Transfers up to 1.6M Bytes/Second with 5 MHz 8237A-5 The 8237A Multimode Direct Memory Access , memory. Memory-to-memory transfer capability is also provided. The 8237A offers a wide variety of , reconfiguration under program control. The 8237A is designed to be used in conjunction with an external 8
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DRE01

intel 8237A DMA Controller

Abstract: 000D /AT computers and discusses how to program the 8237A DMA controller that is used in these systems. An , Various PC Platforms. 3 DMA on PC/XT/AT Computers The IBM PC design uses the Intel 8237A DMA controller, which provides four channels of DMA. The 8237A has 16-bit memory-address and byte-count , mode. The original PC design uses a single 8237A to provide four channels of 8-bit DMA (the PC/XT has , . The design of the IBM PC AT adds a second 8237A DMA controller that increases the total number of DMA
National Instruments
Original
0X0083

Intel 8237A

Abstract: intel 8237A DMA Controller Intel 8237A HIGH PERFORMANCE PROGRAMMABLE DMA CONTROLLER (8237A-5) Directly Expandable to Any Number of Channels End of Process Input for Terminating Transfers Software DMA Requests Independent , Performance: Transfers up to 1.6M Bytes/Second with 5 MHz 8237A-5 The 8237A Multimode Direct Memory Access , memory. Memory-to-memory transfer capability is also provided. The 8237A offers a wide variety of , reconfiguration under program control. The 8237A is designed to be used in conjunction with an external 8
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DNE02
Abstract: PART. THUS, THIS MEGAFUNCTION CAN BE REFERRED TO AS THE 2-CHANNEL 8237A. THE I/O'S CAN BE MADE COMPATIBLE WITH THE 8237A AS SHOWN IN THE CIRCUIT DIAGRAM ON PAGE 4 OF 4 . FOR A DETAILED FUNCTIONAL , GFI2371A GFI2371A GENERAL DESCRIPTION: THE GFI2371A MEGAFUNCTION IS DESIGNED TO BE FOLLY COMPATIBLE WITH THE GFI2370A, OR THE INTEL 8237A, EXCEPT THAT CHANNELS 2 AND 3 ARB NOT FUNCTIONALLY SUPPORTED , CONTROLLER GFI2371A This megafunction can be used to duplicate the function of the Intel 8237A 4 -
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LL7000 LSA2000

8237A data transfer modes

Abstract: 8237A . Another problem involves successfully determining DMA channel completion. The 8237A-type status register , increased the number of DMA channels to seven. Two Intel 8237A-5 DMA controllers are cascaded together, and , this application note are related to the Intel 8237A DMA controller used in the original IBM PC. This , . The PC added an 8-bit page register external to the 8237A to extend the 16-bit address to the 24 , 0FFFFH. The 8237A implements single, block, and demand DMA transfer modes. The PC uses two of the DMA
National Instruments
Original
8237A data transfer modes EISA-A2000 intel 82380 NB-A2000
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