Z86017/Z16017 PCMCIA Interface Solution
Product Specification
28
The four on-chip address maps are:
•
•
•
•
Memory_Map_1
Memory_Map_2
Memory_Map_3
PCMCIA_ATA/IDE Map
Memory_Map_1, _2 and _3 support PCMCIA Memory/IO Mode. The
chip can be configured in PCMCIA Mode either by:
•
Pulling the PC_ATA/HOE pin High during RESET;
or by
Writing 10 in Override bits (bits 3, 2) in the Interface Configuration
•
Register 0 (address 00h), and 0 in bits 0, 1, 2, 6 of the Interface
Configuration Register 02 (address 03h).
After placing the device into PCMCIA Mode, each Map can be
configured independently through its set of configuration registers.
Each Memory Map contains a set of Configuration Registers consisting
of:
•
•
•
•
Window Control Register
Window Start Address LSB Register
Window Start/Range Address MSB
Window Range Address LSB
The PCMCIA_ATA/IDE Map enables chip operation in PCMCIA_ATA/
IDE mode. When in this mode, the chip responds to different types of
accesses, depending on the content of the following registers:
•
•
•
Interface Configuration Register 02, address 03h (bits 0, 1, 6)
Interface Configuration Register 03, address 04h (bits 0, 1, 2, 3)
PCMCIA Exception Status Register, address 071h (bit 0)
PS012002-1201
Addressing Modes
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