Z16M1720ASC Zilog, Z16M1720ASC Datasheet - Page 78

• Manufacturer Part Number: Z16M1720ASC
• Description: IC PCMCIA INTERFACE 100-VQFP
• Manufacturer: Zilog

Specifications of Z16M1720ASC

• Applications: Ethernet Controller
• Interface: SPI Serial
• Voltage - Supply: 3 V ~ 5.5 V
• Package / Case: *
• Mounting Type: *
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

64
EEPROM Register
Address: SELECT 26h
Name: Bus Control 1 Register
Type: Read/Write
Reset: 00h
Table 48.
PS012002-1201
Bit Placement
Bit 0
Bit 1
Bit 3-2
Z86017/Z16017 PCMCIA Interface Solution
Product Specification
Bus Control 1 Register: Address 26h
Bit Name
DISABLE_CLK
EN_IOIS_IN
8-Bit_CNTRL
Description
When this bit is set to 1, it turns off the PC_MCLK_IN
pad. When it is cleared, it enables the PC_MCLK_IN pad.
This bit is automatically cleared when in MASTER mode
and at any access to the EEPROM command Register 7F4h
as seen through the PCMCIA interface.
When this bit is set to 1, it enables the IOIS16 signal to be
generated internally (see Register 27, IOIS16 Address
Control Register, Table 49). When it is cleared, the source
for IOIS16 will be the ATA_IOIS16 input.
PCMCIA 8- to 16-bit control enable (see Table 51).
Programming Internal Registers