Z86M1720ASC データシートの表示（PDF） - Zilog

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Z86M1720ASC

PCMCIA Interface Solution

Zilog 

Z86017/Z16017 PCMCIA Interface Solution

Product Specification

63

EEPROM Register

Address: SELECT 23h

Name: Revision Control Register

Type: Read/Write

Table 46. Revision Control Register: Address 23h

Bit Placement Bit Name

Bit 3-0

REV_MINOR

Bit 7-4

REV_MAJOR

Description

The lower four bits determine the minor revision number.

This nibble must be written with the value read back from

the lower nibble in Read-Only Register 24h to enable the

minor revision functions.

The upper four bits determine the major revision number.

This nibble must be written with the value read back from

the upper nibble in Read-Only Register 24h to enable the

major revision functions.

EEPROM Register

Address: SELECT 24h

Name: Revision Number Register

Type: Read

Table 47. Revision Number Register: Address 24h

Bit Placement Bit Name

Bit 3-0

Bit 7-4

REV_NUM_MINOR

REV_NUM_MAJOR

Description

This is the Read-Only minor revision number of the chip.

This is the Read-Only major revision number of the chip.

Programming Internal Registers

PS012002-1201

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