2
DESCRIPTION OF PIN FUNCTIONS
FLOPPY DISK INTERFACE (14 Pins)
nTRK0
nRDATA
nWDATA
nDSO
nINDEX
DRVDEN0
nWGATE
nMTR0
nWRTPRT
DRVDEN1
nHDSEL
nDSKCHG
nSTEP
nDIR
USB INTERFACE (4 Pins)
USB+
USB-
AVDD
AGND
EXTERNAL FLASH ROM INTERFACE (26 Pins)
FD0/OPT0
FD4/IN0
FA0
FD1/OPT1
FD5/OUT0
FA1
FD2/OPT2
FD6/OUT1
FA2
FD3/OPT3
FD7/OUT2
FA3
FA4
FA5
FA6
FA7
FA8
FA9
FA10
FA11
FA12
FA13
FA14
FA15
nFRD
nFCE
MISC (10 Pins)
ROMEN
XTAL1/CLKIN
TST_OUT
HDO
XTAL2
nDRVRDY
nRESET
nFDPWR
nTEST
nTESTEN
POWER, GROUNDS, and NO CONNECTS (46 Pins)
SMSC DS – USB97CFDC2-01
Page 5
Rev. 02-27-07
DATASHEET
SMSC [ SMSC CORPORATION ]
