FDC37N958FRTQFP View Datasheet(PDF) - SMSC -> Microchip
Part Name
Description
Manufacturer
FDC37N958FRTQFP Datasheet PDF : 316 Pages
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FUNCTIONAL DESCRIPTION
nRESET_OUT
nIOR
nIOW
nMEMRD
nMEMWR
nROMCS
AEN
SA[0:15]
SD[0:7]
DRQ[0:1]
DRQ[2:3]*2
nDACK[0:1]
TC
nDACK[2:3]*1
IRQ4
IRQ[1,6-8,12] (*2)
IRQ[3] (*3), nSMI (*2)
nNOWS
IOCHRDY
MODE
nEA
VCC1_PWGD
PWRGOOD
32KHz_OUT
24MHz_OUT
CLOCKI
(14.318 MHz)
XOSEL
XTAL2
XTAL1
VCC0
AGND
VCC1 (2)
VCC2 (5)
GND (9)
SYSTEM
RESET
HOST
CPU
INTERFACE
CONTROL
ADDRESS
DATA
CONTROL
INPUTS
PLL CLOCK
GENERATOR
RTC
two 128B banks
of CMOS RAM
BANK
1
BANK
2
DIGITAL DATA
SEPARATOR
WITH WRITE
PRECOMPENSATION
nWDATA
nRDATA,
SMSC
PROPRIETARY
82077 COMPATIBLE
VERTICAL FLOPPY DISK
CONTROLLER CORE
CONTROL
ADDRESS
DATA
nDSKCHG, nWPROT,
nTRK0, nINDEX, MID0,
MID1(*1)
nWGATE, nHDSEL, nDIR,
nSTEP, nDS0, nDS1 (*2),
nMTR0, nMRT1 (*2),
DRVDEN0, DRVDEN1 (*2),
FPD
CONTROL
ADDRESS
DATA
CONFIGURATION REGISTERS
POWER
MANAGEMENT
CONTROL
ADDRESS
DATA
WDT
8051
256B Direct RAM
Ring
Oscillator
MAILBOX
REGISTERS
8051
SUB-BLOCK
EXTERNAL
CONTROL
REGISTERS
256B External
8051 RAM
16C550
COMPATIBLE
SERIAL PORT 1
16C550
COMPATIBLE
SERIAL PORT 2
WITH INFRARED
MULTI-MODE
PARALLEL
PORT / FDC MUX
SIRQ/PSB
INTERFACE
IN
GENERAL OUT
PURPOSE I/O
INTERFACE I/O
I/O
LED DRIVER
16 x 8 MATRIX
KEYBOARD
INTERFACE
PS/2 PORTS
ACCESS BUS
PWM
28F020 (2Mbit)
FLASH INTERFACE
TXD1, nRTS1, nDTR1
RXD1, nCTS1, nDSR1, nDCD1
nRI1
TXD2(*1), nRTS2(*1), nDTR2 (*1)
RXD2(*1), nCTS2(*1), nDSR2(*1),
nDCD2(*1), nRI2 (*1)
IRTX
IRRX
PD[0:7]
BUSY, SLCT, PE, nERROR, nACK
nSTB, nSLCTIN, nINIT, nALF
SIRQ
PSBCLK
PSBDAT
IN0 - 7
OUT0 - 11
GPIO16 - 21
GPIO0 - 15
nBAT_LED, nPWR_LED, nFDD_LED
KSI[0:7]
KS0[0:13] , KS0[14:15](*2)
EMCLK, EMDAT, IMCLK, IMDAT
KBCLK, KBDAT, PS2CLK(*1), PS2DAT(*1)
AB_DATA, AB_CLK
PWM0 (*2), PWM1 (*2)
FAD[0:7]
FA[8:17], nFRD, nFWR, FALE
*1 -- GPIO pin multiplexed option
*2 -- OUT pin multiplexed option
*3 -- Muxed with SIRQ and PSBDATA pins
VCC2 POWERED CIRCUITRY
VCC1 POWERED CIRCUITRY
FIGURE 2 - FUNCTIONAL BLOCK DIAGRAM
SMSC DS – FDC37N958FR
Page 13
Rev. 09/01/99
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