w89c926 Winbond Electronics Corp America, w89c926 Datasheet - Page 11

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

EECS/FCS Pull Low (EEPROM)
Notes:
1.The reserved register space in the attribute space is left for future extension. Users should not place their application in this
2. When EECS/ FCS is pulled high, address 00FA0H to 00FFEH is used for Ethernet ID, configuration, and registers.
3. When EECS/ FCS is pulled low, Address 00000H to 003D6H is read-only. The PENTIC+ will ignore write accesses to this
NE2000 Mode Mapping
I/O Mapping
Notes:
1. The PENTIC+ decodes only HA0-4 for I/O access, so the IOBase address is left for the host adapter and the socket service
2. To issue a S/W reset, simply issue an I/O read to the Reset Port. The PENTIC+ will assert a 600 nS internal reset pulse to
area.
Vendors should not put CIS in this region.
area.
to determine.
reset the core state machine. If the host tries to access the PENTIC+, WAIT will be asserted low until the reset is
completed.
ATTRIBUTE MEMORY
OFFSET (HA0-16)
OFFSET (HA0-4)
SYSTEM I/O
00FFEH
03FFEH
003D6H
00FD0H
00FD2H
00FD4H
00FD6H
00FF0H
00FF2H
00FF4H
00FF6H
00000H
01000H
0FH
1FH
00H
10H
17H
18H
-
-
Memory (SRAM)
Remote DMA Port
Reset Port
Register
Register
Register
Register
Register
Register
Register
Register
Register
LCE Core
Registers
Unsued
Unused
TYPE
NAME
- 11 -
Publication Release Date: January 1996
W89C926 PENTIC+
Reserved (see note)
Software Reset
OPERATION
Remote DMA
CONTENTS
Read/Write
Read/Write
Reserved
Register
CCSR
COR
SCR
CFA
CFB
CIS
SR
-
-
-
Revision A1