MB86967 Datasheet, PDF (65/129 Pages) Fujitsu Component Limited. – LAN Controller with PC Card, ISA Bus, and General-purpose Bus Interfaces

MB86967
5. Attribute Memory Space
Attribute memory space has the card attribute data register (CIS) and card configuration register (CCR). It can
be accessed in 8 bits from even addresses; odd addresses are invalid.
The MB86967 can have access to both 8-bit and 16-bit data. When attribute memory space is accessed in the
16-bit mode, only the data signals D0 to D7 are valid, and D8 to D15 are invalid.
CIS is located at 000H to 7EEH, starting with address 0. CCR has four registers, located at 7F0H, 7F2H, 7F4H,
and 7F6H.
Address
7F0H
7F2H
7F4H
7F6H
Symbol
CCR0
CCR1
CCR2
CCR3
Register
Card configuration option register
Card configuration status register
Pin replacement register
Socket/copy register
[Reference]
CIS: In E²PROM or flash ROM
CCR: In MB86967
(1) Read from CIS
Mode REG CE2 CE1 OE IORD WE PA0
Byte access
(8 bits)
0
100
1
0
1
1
Word access
(16 bits)
0
000
1
1×
PD8 to
PD15
Invalid
Invalid
Invalid
PD0 to
PD7
ROMS ROMRD ROMAD
Even byte L
L
L
Invalid
H
H
L
Even byte L
L
L
(2) Write to CIS
Mode
REG CE2 CE1 OE IOWR WE PA0
PD8 to
PD15
PD0 to
PD7
ROMS ROMRD ROMAD
Byte access
(8 bits)
0
1
0
1
1
0 Don’t care Even byte L
0
1 Don’t care Don’t care H
H
H
L
L
Word access
(16 bits)
0
0
0
1
1
0 × Don’t care Even byte L
H
L
(3) Read from CCR
Mode
Byte access
(8 bits)
Word access
(16 bits)
PD8
Address REG CE2 CE1 OE IORD WE PA0 to
PD15
0 Invalid
0 1 00 1 1
7F0H to
7F6H
1 Invalid
0 0 0 0 1 1 × Invalid
PD0
to ROMS ROMRD ROMAD
PD7
Even
byte
H
H
L
Invalid H
H
L
Even
byte
H
H
L
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