FDC37C957FR datasheet(5/328 Pages) SMSC

Part #	FDC37C957FR

Description	ULTRA I/O CONTROLLER FOR PORTABLE APPLICATIONS

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Manufacturer	SMSC [SMSC Corporation]

Direct Link	http://www.smsc.com

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LED CONTROLS ................................ ................................ ................................ ......................... 200

PULSE WIDTH MODULATORS ................................ ................................ ................................ ..201

REAL TIME CLOCK CMOS ACCESS ................................ ................................ ........................ 202

8051 CONTROLLED PARALLEL PORT ................................ ................................ .................... 204

8051 CONTROLLED IR PORT ................................ ................................ ................................ ....207

GENERAL PURPOSE I/O (GPIO) ................................ ................................ ............................... 208

MULTIPLEXED PINS ................................ ................................ ................................ ................... 214

REAL TIME CLOCK ................................ ................................ ................................ ..................... 222

VCC1 POR ................................ ................................ ................................ ................................ ....224

INTERNAL REGISTERS: ................................ ................................ ................................ ............225

TIME CALENDAR AND ALARM ................................ ................................ ................................ .226

UPDATE CYCLE ................................ ................................ ................................ .......................... 228

CONTROL AND STATUS REGISTERS ................................ ................................ ..................... 229

INTERRUPTS ................................ ................................ ................................ ............................... 233

FREQUENCY DIVIDER ................................ ................................ ................................ ................233

PERIODIC INTERRUPT SELECTION ................................ ................................ ......................... 233

POWER MANAGEMENT ................................ ................................ ................................ .............234

ACCESS BUS ................................ ................................ ................................ .............................. 236

BACKGROUND ................................ ................................ ................................ ............................ 236

REGISTER DESCRIPTION ................................ ................................ ................................ ..........236

PS/2 DEVICE INTERFACE ................................ ................................ ................................ ..........242

PS/2 LOGIC OVERVIEW ................................ ................................ ................................ .............242

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