OXCF950 datasheet(23/66 Pages) OXFORD

23 / 66 page

DS-0027 Feb 06

External—Free Release

Page 23 of 66

OXCF950 rev B DATA SHEET

OXFORD SEMICONDUCTOR, INC.

5.5.4

Socket and Copy Register ‘SCR’ (Offset 0xFE)

This is an optional read/write register, implemented by the OXCF950, which the PCMCIA/CF card may use to distinguish

between similar cards installed in a system. This register is always written by the system before writing the card's Function

Configuration Index field in the Configuration Option register.

Reserved

Copy Number

Socket Number

Field

Description

Reserved

This bit is reserved for future standardization. This bit must be set to zero (0) by software when

the register is written.

Copy Number

PCMCIA/CF cards that indicate in their CIS that they support more than one copy of identically

configured cards, should have a copy number (0 to MAX twin cards, MAX = n-1) written back

to the socket and Copy register.

This field indicates to the card that it is the n’th copy of the card installed in the system, which

is identically configured. The first card installed receives the value 0. This permits identical

cards designed to share a common set of I/O ports while remaining uniquely identifiable and

consecutively ordered.

Socket Number

This field indicates to the PCMCIA/CF card that it is located in the n’th socket. The first socket

is numbered o. This permits any cards designed to do so to share a common set of I/O ports

while remaining uniquely identifiable.

Table 20: Socket and Copy Register

5.6

Card Information Structure

5.6.1

Local Bus Mode

Value

(Hex)

Tuple Name

Description

Direct Attribute

0x01

0x02

0x00

0xFF

CISTPL_DEVICE

CIS should start with a CISTPL_DEVICE tuple.

0x03

0x00

CISTPL_INDIRECT

Use indirect access register (located in direct common memory).

0xFF

CISTPL_END

Indirect Attribute

0x13

0x03

0x43

0x49

0x53

CISTPL_LINKTARGET

The first tuple in indirect memory must be a CISTPL_LINKTARGET to prove that a

valid CIS chain is present. The host will start processing from location 0 of the

indirect attribute memory, after following an implied link from the primary CIS chain

in direct attribute memory.

0x1C

0x03

0x00

0xFF

CISTPL_DEVICE_OC

This tuple allows the device to be operated at 3.3 volts as well as at 5.0 volts.

0x20

0x04

0x79

CISTPL_MANFID

This tuple specifies the manufacturer ID and product ID codes (0x0279 and 0x950B

respectively).

OXCF950 Datasheet(PDF) 23 Page - Oxford Semiconductor

OXCF950 Datasheet(HTML) 23 Page - Oxford Semiconductor

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66

Datasheet Download

Link URL