37C672 Datasheet, PDF (16/173 Pages) SMSC Corporation – ENHANCED SUPER I/O CONTROLLER WITH FAST IR

Enhanced Super I/O Controller with Fast IR
Datasheet
SER_IRQ ^*
PCI_CLK ^*
SERIAL
IRQ
nIOR
nIOW
AEN
SA[0:12] (nCS)^*
SA[13-15] ^*
SD[O:7]
DRQ[1:3]^*
nDACK[1:3]^*
TC
IRQ[3:7,10:12] ^*
RESET_DRV
IOCHRDY
HOST
CPU
INTERFACE
Vcc Vss
*
nSMI
SMI
WDT
DATA BUS
ADDRESS BUS
MULTI-MODE
PARALLEL
PORT/FDC
MUX
PD0-7
BUSY, SLCT, PE,
nERROR, nACK
nSTB, nSLCTIN,
nINIT, nALF
CONFIGURATION
REGISTERS
CONTROL BUS
CLOCK
GEN
WDATA
SMSC
PROPRIETARY
82077
COMPATIBLE
VERTICAL
FLOPPYDISK
CONTROLLER
CORE
WCLOCK
DIGITAL
DATA
SEPARATOR
WITH WRITE
PRECOM-
PENSATION
RCLOCK
RDATA
ICLOCK
(14.318)
nINDEX _{DENSEL nDS0,1}
nTRK0 _{nDIR nMTR0,1}
nDSKCHG _{nSTEP DRVDEN0}^*
nWRPRT _{nHDSEL DRVDEN1}
nWGATE
nWDATA nRDATA
16C550
COMPATIBLE
SERIAL
PORT 1
16C550
COMPATIBLE
SERIAL
PORT 2 WITH
INFRARED
8042
* _{Denotes Multifunction Pins}
TXD1, nCTS1, nRTS1
RXD1
nDSR1, nDCD1, nRI1, nDTR1
IRR3/Mode^*
IRRX, IRTX^*
TXD2(IRTX), nCTS2, nRTS2 ^*
RXD2(IRRX)^*
nDSR2, nDCD2, nRI2, nDTR2 ^*
KCLK
KDATA
MCLK
MDATA
GATEA20, KBDRST
P12, P16 ^*
Figure 4.1 - FDC37C672 Block Diagram
SMSC FDC37C672
Page 16
DATASHEET
Rev. 10-29-03