FDC37B77X SMSC Corporation, FDC37B77X Datasheet - Page 11

• Manufacturer Part Number: FDC37B77X
• Description: ENHANCED SUPER I/O CONTROLLER WITH WAKE UP FEATURES
• Manufacturer: SMSC Corporation

SA[0:12] (nCS)
RESET_DRV
nDACK[1:3]
IOCHRDY
SA[13-15]
SER_IRQ
DRQ[1:3]
PCI_CLK
SD[O:7]
nIOW
nIOR
AEN
TC
*
*
*
*
V
INTERFACE
TR
SERIAL
HOST
CPU
IRQ
Vcc Vss
SMI
32KHz
FIGURE 1 - FDC37B77x BLOCK DIAGRAM
CLK32
CLOCK
GEN
CLOCKI
14MHz
nPME
PME
nDSKCHG
nWRPRT
nWGATE
nINDEX
nTRK0
ADDRESS BUS
WDT
PROPRIETARY
CONTROLLER
COMPATIBLE
FLOPPYDISK
VERTICAL
SMSC
DENSEL
CORE
nHDSEL
82077
nSTEP
nDIR
CONFIGURATION
CONTROL BUS
REGISTERS
DRVDEN0
DRVDEN1
nMTR0
nDS0
DATA BUS
RCLOCK
WCLOCK
WDATA
RDATA
11
nWDATAnRDATA
*
SEPARATOR
WITH WRITE
PENSATION
PRECOM-
DIGITAL
DATA
*
Denotes Multifunction Pins
MULTI-MODE
COMPATIBLE
COMPATIBLE
PORT 2 WITH
PORT/FDC
INFRARED
PARALLEL
16C550
SERIAL
SERIAL
16C550
PORT 1
MUX
8042
nDSR1, nDCD1, nRI1, nDTR1
PD0-7
BUSY, SLCT, PE,
nERROR, nACK
nSTB, nSLCTIN,
nINIT, nALF
TXD1, nCTS1, nRTS1
RXD1
IRRX, IRTX
TXD2(IRTX), nCTS2, nRTS2
RXD2(IRRX)
nDSR2, nDCD2, nRI2, nDTR2
KCLK
KDATA
MCLK
MDATA
GATEA20, KRESET
P12
*
, P16
*
*
*
*