FDC37C669-MT SMSC, FDC37C669-MT Datasheet - Page 125

• Manufacturer Part Number: FDC37C669-MT
• Description: IC CTRLR SUPER I/O FLPPY 100TQFP
• Manufacturer: SMSC

Specifications of FDC37C669-MT

• Controller Type: I/O Controller
• Interface: ISA Host
• Voltage - Supply: 4.5 V ~ 5.5 V
• Current - Supply: 25mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 638-1008

CR07
This register can only be accessed in the Configuration
Mode and after the CSR has been initialized to 07H.
The
BIT NO.
0,1
2
3
4
5
6
7
default
UART 2 Enable This bit controls the AUTOPOWER DOWN feature of the UART2.
UART 1 Enable This bit controls the AUTOPOWER DOWN feature of the UART1.
Parallel Port
Floppy Boot
Floppy Disk
BIT NAME
Reserved
Reserved
Enable
Enable
value
Table 53 - CR07
0 = Drive A (default)
1 = Drive B
Read as 0.
Read as 0.
This bit controls the AUTOPOWER DOWN feature of the Parallel
Port. The function is:
0 = Auto powerdown disabled (default)
1 = Auto powerdown enabled
This bit is reset to the default state by POR or a hardware reset.
The function is:
0 = Auto powerdown disabled (default)
1 = Auto powerdown enabled
This bit is reset to the default state by POR or a hardware reset.
The function is:
0 = Auto powerdown disabled (default)
1 = Auto powerdown enabled
This bit is reset to the default state by POR or a hardware reset.
This bit controls the AUTOPOWER DOWN feature of the Floppy
Disk. The function is:
0 = Auto powerdown disabled (default)
1 = Auto powerdown enabled
This bit is reset to the default state by POR or a hardware reset.
This bit is used to define the boot floppy.
of
125
this register after power up is 00H. This register holds the
value for the auto power management, and floppy boot
drive.
DESCRIPTION