w89c926 Winbond Electronics Corp America, w89c926 Datasheet - Page 15

• Manufacturer Part Number: w89c926
• Description: Pcmcia Ethernet Network Twisted Pair Interface Controller
• Manufacturer: Winbond Electronics Corp America

CCSR (Card Configuration and Status Register)
Access Address: AMBase + 00FD2H
Access Type: Attribute Memory Read/Write
SCR (Socket and Copy Register)
The SCR is used to enable the PENTIC+ to distinguish between similar cards installed in the same
system.
Access Address: AMBase + 00FD6H
Access Type: Attribute Memory Read/Write
LAN Configuration Register Set
These two registers are used for LAN configuration control.
CFA (Configuration Register A)
This register is used to select the PENTIC+'s operating mode and LED control.
Access Address: AMBase + 00FF0H
Access Type: Attribute Memory Read/Write
BIT
BIT
2-7
0-3
4-6
0
1
7
SYMBOL
SYMBOL
CopNum
SocNum
Intr
-
-
-
Reserved, must be 0.
Interrupt Status
This bit indicates the internal status of an interrupt request. It remains high
until the condition that caused the interrupt request has been serviced.
This bit is 0 at power-on.
Reserved, must be 0s.
Socket Number
Set these bits to indicate to the PENTIC+ that it is located in the n'th
socket. The first socket is numbered 0. This permits any cards designed to
do so to share a common set of IO ports while remaining uniquely
identifiable. These bits are 0 at power-on.
Copy Number
Set these bits to indicate to the PENTIC+ that it is the n'th copy of another
card installed in the system that is configured identically. The first identical
card should be assigned a value of 0 as its copy number. This permits any
cards designed to do so to share a common set of I/O ports while
remaining uniquely identifiable and consecutively ordered. These bits are
0s at power-on.
Reserved, must be 0.
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DESCRIPTION
DESCRIPTION
Publication Release Date: January 1996
W89C926 PENTIC+
Revision A1