PCI7510 datasheet(114/234 Pages) TI

114 / 234 page

5–5

5.1

ExCA Identification and Revision Register

This register provides host software with information on 16-bit PC Card support and 82365SL-DF compatibility. See

Table 5–2 for a complete description of the register contents.

NOTE: If bit 5 (SUBSYRW) in the system control register is 1, then this register is read-only.

Bit

Name

ExCA identification and revision

Type

Default

ExCA identification and revision

Offset:

CardBus Socket Address + 800h:

Card A ExCA Offset 00h

Card B ExCA Offset 40h

Type:

Read/Write, Read-only

Default:

84h

Table 5–2. ExCA Identification and Revision Register Description

BIT

SIGNAL

TYPE

FUNCTION

7–6 ‡

IFTYPE

Interface type. These bits, which are hardwired as 10b, identify the 16-bit PC Card support provided by the

PCI7510 device. The PCI7510 device supports both I/O and memory 16-bit PC Cards.

5–4 ‡

RSVD

These bits can be used for 82365SL emulation.

3–0 ‡

365REV

82365SL-DF revision. This field stores the Intel 82365SL-DF revision supported by the PCI7510 device. Host

software can read this field to determine compatibility to the 82365SL-DF register set. This field defaults to

0100b upon reset. Writing 0010b to this field puts the controller in the 82356SL mode.

‡ One or more bits in this register are cleared only by the assertion of GRST.

PCI7510 Datasheet(PDF) 114 Page - Texas Instruments