Z86017 Datasheet, PDF (81/138 Pages) Zilog, Inc. – PCMCIA Interface Solution

Z86017/Z16017 PCMCIA Interface Solution
Product Specification
67
Table 50. 16-Bit_Control
Bit 6
Bit 5
Description
0
0
IOIS16 is being generated internally.
1
0
IOIS8 is the source for the IOIS16 in PCMCIA I/O Mode.¹
1
1
IOIS16 is always High in PCMCIA I/O Mode
Note:
IOIS8 is bit 5 in CCR1 Card Configuration and Status Register.
NOTES:
1.
Table 51. 8-Bit _CTRL
Bit 3
Bit 2
Description
0
0
PCMCIA_8 to ATA_16 Mode is disabled.
0
1
1
0
IOIS8 controls PCMCIA_8 to ATA_16 Mode.¹
1
1
Forces the ZX6017 into PCMCIA_8 to ATA_16 Mode.
NOTES:
1. IOIS8 is bit 5 in CCR1 Card Configuration and Status Register.
Programming Internal Registers
PS012002-1201