LSI Logic Confidential
Interrupt/GPIO Configuration and Value Registers
10-15
Copyright © 2001, 2002 by LSI Logic Corporation. All rights reserved.
A
23
Address hold time, corresponding to AH in
Reset to one.
CS
[22:19]
Chip-select on time, corresponding to CSO in
.
Reset to 12.
DS
[18:15]
Data strobe on time, corresponding to DSO in
Reset to 15.
BH
[14:11]
Bus hold time, corresponding to BH in
. Reset
to 15.
BD
[10:7]
Burst M_DTACK timing, corresponding to BDT in
. Reset to 15.
DT
[6:0]
Data Transfer Acknowledge timing. For self-paced
transfers this is the delay to assertion of
M_DTACK/M_WAIT (see
). For device-paced
transfers, this is the delay before sampling the
M_DTACK/M_WAIT input (see
). Reset to 63.
Note:
If the personality-dependant register is written by software
in the middle of a master will be used to complete the
current bus cycle before using the new timing parameters.
10.6 Interrupt/GPIO Configuration and Value Registers
The Interrupt/GPIO Configuration register at control bus address
0x6F050 specifies async master interrupt and GPIO configuration
information for six shared function/interrupt/GPIO pins. This register is
set to zero on reset.
The register contains a 4-bit field for each of the six shared
function/interrupt/GPIO pins. The field for GPIO[0] is stored in the least
significant four bits of the register; the field for GPIO[5] is stored in the
most significant four bits of the register, as shown below.
Содержание DMN-8600
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