FDC37C78-HT Standard Microsystems (SMSC), FDC37C78-HT Datasheet - Page 60

• Manufacturer Part Number: FDC37C78-HT
• Manufacturer: Standard Microsystems (SMSC)

Specifications of FDC37C78-HT

• Package Type: TQFP
• 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 enable
bits or doing a software reset (via DOR or DSR reset bits) will wake up the part
Base + Address
00H
01H
02H
03H
04H
06H
07H
07H
04H
05H
Table 31 - State of System Pins in Auto Powerdown
Access to these registers DOES NOT wake up the part
System Pins
Access to these registers wakes up the part
RESET
DB[0:7]
IDENT
Table 30 - PC/AT Available Registers
DACK
FDRQ
D[0:7]
A[0:9]
IOW
IOR
IRQ
TC
Available Registers
Output Pins
Input Pins
DOR (1)
DSR (1)
PC-AT
CCR
MSR
Data
60
DIR
State in Auto Powerdown
----
----
---
---
Unchanged (low)
Unchanged (low)
Unchanged
Unchanged
Unchanged
Unchanged
Unchanged
Unchanged
Unchanged
Unchanged
Unchanged
Access Permitted
R/W
R/W
---
W
---
W
R
R
R
R