w89c926 Winbond Electronics Corp America, w89c926 Datasheet - Page 9

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

SYSTEM DIAGRAM
FUNCTIONAL DESCRIPTION
ADDRESS MAPPING
EEPROM MAPPING
Notes:
1. The fifth (05H) word is used for shared memory mode and the ninth (09H) word is used for NE2000 mode.
2. Word Count = nH (n should be set as a non zero value, a zero value will cause an unpredicted error).
EEPROM ADDRESS
(n+1) H-FFH
EEPROM
(EECS/FCS
128KB X 1
(EECS/FCS
93C56/66
pull low)
pull high)
SRAM
16 KB X 1
FLASH
pull low)
or 32KB X 1
(EECS/FCS
06H-08H
0AH-nH
00H
01H
02H
03H
04H
05H
09H
Two combinations may be used for the hardware structure:
Combination 1: EECS/FCS pull high/128 KB X 1 flash memory/16 KB X 1 SRAM
Combination 2: EECS/FCS pull low/256 or 512B EEPROM/32 KB X 1 SRAM
3
15
MSD0-7
MSA0-16
HA0-16
HIGH BYTE
Check Sum
PCMCIA slot
W89C926
OSC/XTAL
- 9 -
CFB
ID-1
ID-3
ID-5
57H
CIS
-
-
-
HD0-15
Publication Release Date: January 1996
W89C926 PENTIC+
W89C92
optional
TP/IF
Board Type (05H)
Word Count
LOW BYTE
CFA
ID-0
ID-2
ID-4
57H
CIS
LEDs
-
-
Revision A1