Cs N Mskh (Ucsmskh; D.5 Cs N Mskh (Ucsmskh) - Intel 386 User Manual

Intel386™ EX EMBEDDED MICROPROCESSOR USER'S MANUAL
D.5

CS n MSKH (UCSMSKH)

Chip-select High Mask
CS n MSKH ( n = 0–6), UCSMSKH
(read/write)
15
— —
7
CM13 CM12
Bit Bit
Number Mnemonic
15–10 —
9–0 CM15:6
D-10
— —
CM11 CM10
Reserved; for compatibility with future devices, write zeros to these bits.
Mask Value Upper Bits:
Defines the upper 10 bits of the channel's 15-bit mask. The mask bits
CM15:6 and the address bits CA15:6 form a masked address that is
compared to memory address bits A25:16 or I/O address bits A15:6.
Expanded Addr: F406H, F40EH
F416H, F41EH
F426H, F42EH
F436H, F43EH
ISA Addr: —
Reset State: 0000H (CS n MSKH)
FFFFH (UCSMSKH)
— — CM15
CM9 CM8
Function
8
CM14
0
CM7 CM6