97CFDC Datasheet, PDF (5/20 Pages) SMSC Corporation – USB FLOPPY DISK CONTROLLER

DESCRIPTION OF PIN FUNCTIONS
nTRK0
nRDATA
nWDATA
nDSO
USB+
FD0
FD4
FA0
FA4
FA8
FA12
nFRD
SD0
SD4
SA0
SA4
SA8
SA12
nMEMEN
XTAL1/CLKIN
TST_OUT
FLOPPY DISK INTERFACE (14 Pins)
nINDEX
nWRTPRT
DRVDEN0
DRVDEN1
nWGATE
nHDSEL
nMTR0
USB INTERFACE (4 Pins)
USB-
AVDD
FLASH ROM INTERFACE (26 Pins)
FD1
FD2
FD5
FD6
FA1
FA2
FA5
FA6
FA9
FA10
FA13
FA14
nFCE
SRAM/IO INTERFACE (24 Pins)
SD1
SD2
SD5
SD6
SA1
SA2
SA5
SA6
SA9
SA10
SA13
nMEMR
MISC (10 Pins)
OPTEN
nDRVRDY
XTAL2
nRESET
nTESTEN
POWER, GROUNDS, and NO CONNECTS (22 Pins)
nDSKCHG
nSTEP
nDIR
AGND
FD3
FD7
FA3
FA7
FA11
FA15
SD3
SD7
SA3
SA7
SA11
nMEMW
nFDPWR
nTEST
SMSC DS – USB97CFDC
Page 5
Rev. 12/15/2000