Z86017 Datasheet, PDF (74/138 Pages) Zilog, Inc. – PCMCIA Interface Solution

Z86017/Z16017 PCMCIA Interface Solution
Product Specification
60
EEPROM Register
Address: SELECT 19h
Name: Window 3 Start Address LSB
Type: Write/Read
Table 39. Window 3 Start Address LSB: Address 19h
Bit Placement Bit Name
Bits 7-0
Description
LSB starting Address for Port 3.
EEPROM Register
Address: SELECT 1Ah
Name: Window 3 Start/Range Address MSB
Type: Write/Read
Table 40. Window 3 Start/Range Address MSB: Address 1Ah
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 3.
When this bit is set, the RWPROT bit in the pin
replacement register is used to inhibit writing to the
external peripherals. When this bit is cleared, PROT is
ignored.
Bits 8, 9, and 10 of the starting address range of Port 3.
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.
PS012002-1201
Programming Internal Registers