FDC37C669-MT SMSC, FDC37C669-MT Datasheet - Page 122

• 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

CR03
This
Configuration Mode and the CSR has been
BIT NO.
7,2
0
1
3
4
5
6
register
PWRGD/
GAMECS
Enhanced Floppy Mode
2
Reserved
DRVDEN1
MFM
IDENT
ADRx/
DRV2 EN/
IRQ_B
can
BIT NAME
only
be
accessed
Bit 0
0
1
Bit 1
0
1
Reserved - Read as zero
Bit
4
0
1
IDENT is used in conjunction with MFM to define the interface
mode of operation
Bit - 7
0
1
1
Table 50 - CR03
IDENT
1
1
0
0
in the
Pin function
PWRGD (default)
GAMECS
Pin DRVDEN1 output
DRVDEN 1 output
DRVDEN 1 high (default)
Bit - 2
x
0
1
Floppy Mode - Refer to the description of the
TAPE DRIVE REGISTER (TDR) for more
information on these modes.
NORMAL Floppy Mode (Default)
Enhanced Floppy Mode 2 (OS2)
122
MFM
Pin 94
DRV2 (input)
ADRX
IRQ_B
1
0
1
0
initialized to 03H. The default value after power up is
780H.
DESCRIPTION
MODE
AT Mode (Default)
Reserved
PS/2
Model 30