320724-01 查看數據表（PDF） - National Instruments Corporation

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320724-01

Single-Chip IEEE 488.2 Talker/Listener ASIC

National Instruments Corporation 

TNT4882

Single-Chip IEEE 488.2 Talker/Listener ASIC

Hardware Interfacing – Generic Mode TNT4882

CPU (80186)

DRQ0

ARDY

RD

WR

INT0

RESET

BHE

AD15-0

ALE

74573

AD0

Decode

TNT4882-AQ

(GENERIC)

DRQ

RDY1

RRN

WRN

INTR

RESETN

DIO8N

DIO7N

DIO6N

DIO5N

DIO4N

DIO3N

DIO2N

DIO1N

ABUSN

BBUSN

DACKN

CSN

RENN

IFCN

NDACN

NRFDN

DAVN

EOIN

ATNN

SRQN

ADDR4-0

GPIB

DEN

DT/R

74245

73245

Figure 6. Intel CPU to Generic Mode TNT4882

DATA15-8

DATA7-0

NC CPUACC

PAGED

NC SWAPN

NC BURST_RDN

NC FIFO_RDY

NC MODE

XTAL0

XTAL1

KEYRSTN

KEYDQ

KEYCLKN

TADCS

LADCS

REM

TRIG

DCAS

ABUS_OEN

BBUS_OEN

NC

40 MHz CMOS

OSCILLATOR

NC

NC

NC

NC

NC

NC

NC

NC

NC

NC

Generic Pin Configuration Byte Lane Table

This table shows which byte lanes will access TNT4882 registers

during I/O accesses.

ABUSN

0

1

0

0

1

BBUSN

1

0

0

1

0

*Any address except 11000

ADDR4-0

11000

11000

11000

XXXXX*

XXXXX*

D15-8

FIFOB

unused

FIFOA

used

unused

D7-0

unused

FIFOB

FIFOB

unused

used

National Instruments 9

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