NAME
REG INDEX
DEFINITION
STATE
FDD Type Register
0xF2 R/W Bits[1:0] Floppy Drive A Type
Bits[3:2] Floppy Drive B Type
C
Default = 0xFF
Bits[5:4] Reserved (could be used to store Floppy
Drive C type)
Bits[7:6] Reserved (could be used to store Floppy
Drive D type)
on Vcc POR or
Reset_Drv
Note: The FDC37B72x supports
two floppy drives
0xF3 R
Reserved, Read as 0 (read only)
C
C
FDD0
0xF4 R/W Bits[1:0] Drive Type Select: DT1, DT0
Bits[2] Read as 0 (read only)
Default = 0x00
Bits[4:3] Data Rate Table Select: DRT1, DRT0
Bits[5] Read as 0 (read only)
Bits[6] Precompensation Disable PTS
=0 Use Precompensation
on Vcc POR or
Reset_Drv
=1 No Precompensation
Bits[7] Read as 0 (read only)
FDD1
0xF5 R/W Refer to definition and default for 0xF4
C
176
SMSC [ SMSC CORPORATION ]
