MB86967 Datasheet, PDF (9/129 Pages) Fujitsu Component Limited. – LAN Controller with PC Card, ISA Bus, and General-purpose Bus Interfaces

MB86967
(Continued)
Pin no. Symbol
69
IREQ1/IOSEL0
74
IREQ2/IOSEL1
75
IREQ3/IOSEL2
92
IREQ0
Pin name
INTERRUPT
REQUEST 0 to 3
(Active High)
I/O ADDRESS
SELECT
I/O
Function
IU/O Jumperless Mode
These pins are used for output of IR signals. One of
IREQ0 to IREQ3 is selected by configuration data in
EEPROM.
Jumper Mode
These pins are used to select the I/O base
addresses to which the LAN controller is allocated.
IOSEL2 IOSEL1 IOSEL0
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
I/O Base Address
260H to 27FH
280H to 29FH
2A0H to 2BFH
240H to 25FH
340H to 35FH
320H to 33FH
380H to 39FH
300H to 31FH
83
DMACK
DMA
I This pin is used for input of DMAC acknowledge
ACKNOWLEDGE
signals indicating that the DMAC is ready to transmit
and receive data to and from buffer memory.
3
IOCHRDY I/O CHANNEL READY OD This pin is used for output of signals indicating
(Active Low,
READY for handshaking with the host system.
open-drain output)
84
IOCS16
I/O CHANNEL
OD This pin is used for output of signals indicating that
SELECT 16
data transfer is made in a 16-bit I/O access cycle.
(Active Low,
open-drain output)
93
ENHB
ENABLE DATA HIGH O This pin is used for output of enable signals for an
(Active Low)
external upper system data bus transceiver.
95
ENLB
ENABLE DATA LOW O This pin is used for output of enable signals for an
(Active Low)
external lower system data bus transceiver.
99
EEPSK
SHIFT CLOCK
O This pin is used for output of EEPROM shift clock
pulses.
97
EEPDI
DATA IN
O This pin is connected to DATA IN pin of EEPROM.
96
EEPDO
DATA OUT
IU This pin is connected to DATA OUT pin of EEPROM.
98
EECS
EEPROM CHIP
O This pin is used for output of EEPROM chip select
SELECT
signals.
(Active High)
9