FDC37B77X SMSC Corporation, FDC37B77X Datasheet - Page 109
FDC37B77X
Manufacturer Part Number
FDC37B77X
Description
ENHANCED SUPER I/O CONTROLLER WITH WAKE UP FEATURES
Manufacturer
SMSC Corporation
Datasheet
1.FDC37B77X.pdf
(196 pages)
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Note 1: Writing to the DOR or DSR does not wake up the part, however, writing any of the
ADDRESS
BASE +
motor enable bits or doing a software reset (via DOR or DSR reset bits) will wake up
the part.
00H
01H
02H
03H
04H
06H
07H
07H
04H
05H
Table 45 - State of System Pins in Auto Powerdown
Access to these registers DOES NOT wake up the part
SYSTEM PINS
RESET_DRV
Table 44 - PC/AT and PS/2 Available Registers
SD[0:7]
SD[0:7]
SA[0:9]
DACKx
Access to these registers wakes up the part
nIOW
DRQx
nIOR
IRQx
TC
DOR (1)
DSR (1)
PC-AT
MSR
CCR
Data
AVAILABLE REGISTERS
DIR
----
----
---
---
OUTPUT PINS
INPUT PINS
STATE IN AUTO POWERDOWN
PS/2 (MODEL 30)
109
DOR (1)
DSR (1)
MSR
CCR
Data
SRA
SRB
DIR
Unchanged (low)
Unchanged (low)
---
---
Unchanged
Unchanged
Unchanged
Unchanged
Unchanged
Unchanged
Unchanged
Unchanged
ACCESS PERMITTED
R/W
R/W
---
W
---
W
R
R
R
R
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