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AH = 87h AL = adapter number BH = window number
Return:
CF clear if successful AH destroyed BL = capabilities (see #00673) CX = bitmap of assignable sockets DH = EISA A15-A12 address lines (in bits 7-4, bits 3-0 = 0) DL = supported access speeds (see #00674) DS:SI -> Memory Window Characteristics table (see #00675) DS:DI -> I/O Window Characteristics table (see #00676) CF set on error AH = error code (01h,11h) (see #00656)
See Also: AH=84h"PCMCIA" - AH=88h - AH=89h - AH=8Ch
Bitfields for PCMCIA window capabilities: Bit(s) Description (Table 00673) 7-5 reserved (0) 4 separate enable for EISA comon space 3 EISA I/O mappable 2 I/O space 1 attribute memory 0 common memory
Bitfields for PCMCIA supported access speeds: Bit(s) Description (Table 00674) 7 reserved (0) 6 600 ns 5 300 ns 4 250 ns 3 200 ns 2 150 ns 1 100 ns 0 WAIT line monitoring
Format of PCMCIA Memory Window Characteristics table: Offset Size Description (Table 00675) 00h WORD window capabilities (see #00677) 02h WORD minimum base address in 4K pages 04h WORD maximum base address in 4K pages 06h WORD minimum window size in 4K pages 08h WORD maximum window size in 4K pages 0Ah WORD window size granularity (4K units) 0Ch WORD required base address alignment (4K units) 0Eh WORD required card offset alignment (4K units)
Format of PCMCIA I/O Window Characteristics table: Offset Size Description (Table 00676) 00h WORD window capabilities (see #00677) 02h WORD minimum base address in bytes 04h WORD maximum base address in bytes 06h WORD minimum window size in bytes 08h WORD maximum window size in bytes 0Ah WORD window size granularity (bytes)
Bitfields for PCMCIA window capabilities: Bit(s) Description (Table 00677) 0 programmable base address 1 programmable window size 2 window disable/enable supported 3 8-data bus 4 16-data bus 5 base address alignment on size boundary required 6 power-of-two size granularity ---memory windows--- 7 card offset must be aligned on size boundary 8 paging hardware available 9 paging hardware shared 10 page disable/enable supported 11-15 reserved (0) ---I/O windows--- 7-15 reserved (0)
Category: Expansion Bus Bios - Int 1Ah - P
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