W89C926PENTIC Ver la hoja de datos (PDF) - Winbond

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W89C926PENTIC

PCMCIA ETHERNET NETWORK TWISTED PAIR INTERFACE CONTROLLER

Winbond 

W89C926 PENTIC+

Buffer Memory Mapping

NIC CORE

MEMORY MAP

0000H

001FH

0020H

00FFH

0100H

3FFFH

4000H

7FFFH

8000H

BFFFH

C000H

FFFFH

Nonvolatile Memory Mapping

F/ EE = 1 (flash memory used)

SYSTEM

OFFSET (HA0-16)

00000H

03FFFH

04000H

1FFFFH

NE2000 COMPATIBLE

ID Registers

Aliased

ID Registers

Buffer SRAM

(16K × 8)

Aliased

ID Registers

Aliased Buffer SRAM

MEMORY TYPE

Attribute/

Flash

Common/

Flash

NAME

CIS/ID/PCMCIA Register

(8K × 8)

(112K × 8)

F/ EE = 0 (EEPROM used)

SYSTEM

OFFSET (HA0-16)

MEMORY TYPE

NAME

00000H

Attribute/

CIS

003D6H

(Note)

(492 × 8)

Notes:

1. This attribute memory is an image from EEPROM. It is actually resident in upper half of the SRAM after power-on auto-

loading.

2. Refer to "Attribute Memory Mapping" for detailed locations.

3. The PENTIC+ decodes HA0-16 for memory access. The (common or attribute) MEMBase addresses are left for the host adapter

and the socket service to determine.

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