FDC37B787-NS Standard Microsystems (SMSC), FDC37B787-NS Datasheet - Page 111

• Manufacturer Part Number: FDC37B787-NS
• Manufacturer: Standard Microsystems (SMSC)

Specifications of FDC37B787-NS

• Pin Count: 128
• Lead Free Status / RoHS Status: Compliant

Note 1: Writing to the DOR or DSR does not wake up the part, however, writing any of the motor
BASE + ADDRESS
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 49 - STATE OF SYSTEM PINS IN AUTO POWERDOWN
TABLE 48 - PC/AT AND PS/2 AVAILABLE REGISTERS
Access to these registers DOES NOT wake up the part
SYSTEM PINS
RESET_DRV
SA[0:9]
SD[0:7]
DACKx
SD[0:7]
DRQx
nIOW
Access to these registers wakes up the part
nIOR
IRQx
TC
DOR (1)
DSR (1)
PC-AT
MSR
CCR
Data
DIR
AVAILABLE REGISTERS
----
----
---
---
OUTPUT PINS
INPUT PINS
STATE IN AUTO POWERDOWN
PS/2 (MODEL 30)
113
DOR (1)
DSR (1)
CCR
MSR
SRA
SRB
Data
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