776866-01 Ver la hoja de datos (PDF) - National Instruments Corporation
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776866-01 Datasheet PDF : 16 Pages
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TNT4882
Single-Chip IEEE 488.2 Talker/Listener ASIC
Hardware Interfacing – ISA Mode TNT4882
AT(ISA) Bus
Connector
NC
BALE
NC
SA19-16
NC
LA23-17
SD15-0
SA9-0
NC
SMEMR*
NC
SMEMW*
NC
MEMR*
NC
MEMW*
NC
MEMCS16*
NC
NOWS*
NC
REFRESH*
NC
MASTER16*
NC
IOCHK*
SBHE*
AEN
IOCHRDY
RESET
IOW*
IOR*
IOCS16*
NC
BCLK
NC
OSC
DACK*7-5
DRQ7-5
IRQ (3-7,9,10-12,14,15)
NC
TC
Connect DACKN, DRQ, and
INTR to one of the available
lines on the AT bus.
TNT4882
DATA15-0
ADDR9-0
BHEN_N
AEN_N
IOCHRDY
RESET
IOWN
IORN
IOCS16N
DIO8N
DIO7N
DIO6N
DIO5N
DIO4N
DIO3N
DIO2N
DIO1N
RENN
IFCN
NDACN
NRFDN
DAVN
EOIN
ATNN
SRQN
DACKN
DRQ
INTR
SENSE_8_16N
XTAL0
XTAL1
NC
NC
D15_8_OEN
NC
D7_0_OEN
NC
MODE
NC
KEYRSTN
NC
KEYDQ
NC
KEYCLKN
SW9
NC
SW8
SW7
NC
SW6
NC
SW5
PC/XT Bus
Connector
NC
BALE
NC
SA19-16
NC
LA23-17
SD7-0
SA9-0
NC
SMEMR*
NC
SMEMW*
NC
MEMR*
NC
MEMW*
NC
REFRESH*
AEN
IOCHRDY
RESET
IOW*
IOR*
NC
IOCHK*
NC
BCLK
NC
OSC
DACK*3-1
DRQ3-1
IRQ7-2
NC
TC
Connect DACKN, DRQ, and
INTR to one of the available
lines on the PC bus.
TNT4882
DATA7-0
ADDR9-0
DIO8N
DIO7N
DIO6N
DIO5N
DIO4N
DIO3N
DIO2N
DIO1N
AEN_N
IOCHRDY
RESET
IOWN
IORN
RENN
IFCN
NDACN
NRFDN
DAVN
EOIN
ATNN
SRQN
DACKN
DRQ
INTR
NC
SENSE_8_16N
XTAL0
NC
XTAL1
NC
DATA15-8
NC
D15_8_OEN
NC
D7_0_OEN
NC
MODE
NC
KEYRSTN
NC
KEYDQ
NC
KEYCLKN
SW9
NC
SW8
SW7
NC
SW6
NC
SW5
Figure 5. PC/XT and AT (ISA) Bus to ISA Mode TNT4882
GPIB
40 MHz CMOS
OSCILLATOR
} The TNT4882 is selected when
the binary value on these pins
matches that on ADDR9-5.
Connecting them to ground
causes the corresponding
address lines to be compared to
zero; leaving them unconnected
causes those address lines to be
compared to one. (Base I/O
address 2C0 hex shown.)
GPIB
40 MHz CMOS
OSCILLATOR
} The TNT4882 is selected
when the binary value on
these pins matches that on
ADDR9-5. Connecting
them to ground causes the
corresponding address lines
to be compared to zero;
leaving them unconnected
causes those address lines
to be compared to one. (Base
I/O address 2C0 hex shown.)
National Instruments 7
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