PD6710 datasheet(65/138 Pages) INTEL

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ISA-to-PC-Card (PCMCIA) Controllers — PD6710/’22

Datasheet

Bits 7:0 — Start Address 19:12

This register contains the least-significant byte of the address that specifies where in the memory

space the corresponding memory map will begin. Memory accesses that are equal or above this

address and equal or below the corresponding System Memory Map End Address will be mapped

into the memory space of the corresponding PC Card.

The most-significant four bits are located in the System Memory Map 0–4 Start Address High

9.2

System Memory Map 0–4 Start Address High

There are five separate System Memory Map Start Address High registers, each with identical

fields. These registers are located at the following indexes:

Index

System Memory Map Start Address High

11h

System Memory Map 0 Start Address High

19h

System Memory Map 1 Start Address High

21h

System Memory Map 2 Start Address High

29h

System Memory Map 3 Start Address High

31h

System Memory Map 4 Start Address High

Bits 3:0 — Start Address 23:20

This field contains the most-significant four bits of the Start Address. See the description of the

Start Address field associated with bits 7:0 of the System Memory Map 0–4 Start Address Low

Bit 7 — Window Data Size

This bit determines the data path size to the card.

Index: 11h, 19h, 21h, 29h, 31h

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Window Data

Size

Compatibility

Bit

Scratchpad Bits

Start Address 23:20

RW:0

RW:00

RW:0000

8-bit data path to the card.

16-bit data path to the card.

PD6710 Datasheet(PDF) 65 Page - Intel Corporation

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