Z86017 Datasheet, PDF (72/138 Pages) Zilog, Inc. – PCMCIA Interface Solution

Z86017/Z16017 PCMCIA Interface Solution
Product Specification
58
EEPROM Register
Address: SELECT 16h
Name: Window 2 Start/Range Address MSB
Type: Write/Read
Table 36. Window 2 Start/Range Address MSB: Address 16h
Bit Placement Bit Name
Bits 2-0
Bit 3
EN_WRITE_PROTECT
Bits 6-4
Bit 7
EN_DMA_ACK
Description
Bits 8, 9, and 10 of the starting address range of Port 2.
When this bit is set, the RWPROT bit in the pin
replacement register is used to inhibit writing to the
external peripherals. When it is cleared, PROT is ignored.
Bits 8, 9, and 10 of the starting address range of Port 2.
When this bit is set, ATA_DMA_ACKNOWLEDGE is set
when the address space is accessed, and Speaker Out on
the PCMCIA interface is used as DREQ.
EEPROM Register
Address: SELECT 17h
Name: Window 2 Range Address LSB
Type: Write/Read
Table 37. Window 2 Range Address LSB: Address 17h
Bit Placement Bit Name
Bits 7-0
Description
LSB range address for Port 2.
PS012002-1201
Programming Internal Registers