IT8705F View Datasheet(PDF) - ITE Tech. INC.

Part Name

Description

Manufacturer

IT8705F

Simple Low Pin Count Input / Output (Simple LPC I/O)

ITE Tech. INC. 

IT8705F

9.6.12.7

9.6.12.8

9.6.12.9

9.6.12.10

9.6.12.11

9.6.12.12

LOCK ........................................................................................................ 116

VERSION ........................................................................................................ 116

SENSE INTERRUPT STATUS......................................................................... 116

SENSE DRIVE STATUS .................................................................................. 117

SPECIFY ........................................................................................................ 117

PERPENDICULAR MODE ............................................................................... 118

9.6.12.13 INVALID ........................................................................................................ 118

9.6.13 DMA Transfers

........................................................................................................ 118

9.6.14 Low Power Mode ........................................................................................................ 119

9.7 Serial Port (UART) Register Description ..................................................................................... 119

9.7.1 Data Registers .................................................................................................................... 119

9.7.2 Control Registers: IER, IIR, FCR, DLL, DLM, LCR and MCR ............................................ 120

9.7.3 Status Registers: LSR and MSR ........................................................................................ 125

9.7.4 Reset................................................................................................................................... 128

9.7.5 Programming ...................................................................................................................... 128

9.7.6 Software Reset ................................................................................................................... 128

9.7.7 Clock Input Operation ......................................................................................................... 128

9.7.8 FIFO Interrupt Mode Operation .......................................................................................... 129

9.8 Parallel Port ................................................................................................................................. 130

9.8.1 SPP and EPP Modes.......................................................................................................... 131

9.8.2 EPP Mode Operation.......................................................................................................... 132

9.8.3 ECP Mode Operation.......................................................................................................... 133

9.9 Consumer Remote Control (TV Remote) IR (CIR) ...................................................................... 141

9.9.1 Overview ............................................................................................................................. 141

9.9.2 Features.............................................................................................................................. 141

9.9.3 Block Diagram .................................................................................................................... 141

9.9.4 Transmit Operation .............................................................................................................142

9.9.5 Receive Operation ..............................................................................................................142

9.9.6 Register Descriptions and Address .................................................................................... 142

9.9.6.1

CIR Data Register (DR) .................................................................................... 143

9.9.6.2

CIR Interrupt Enable Register (IER) ................................................................. 143

9.9.6.3

CIR Receiver Control Register (RCR) .............................................................. 144

9.9.6.4

CIR Transmitter Control Register 1 (TCR1) ..................................................... 145

9.9.6.5

CIR Transmitter Control Register 2 (TCR2) ..................................................... 146

9.9.6.6

CIR Baud Rate Divisor Low Byte Register (BDLR) .......................................... 149

9.9.6.7

CIR Baud Rate Divisor Register High Byte (BDHR)......................................... 149

9.9.6.8

CIR Transmitter Status Register (TSR) ............................................................ 149

9.9.6.9

CIR Receiver FIFO Status Register (RSR) ...................................................... 150

9.9.6.10 CIR Interrupt Identification Register (IIR) ......................................................... 150

9.10 Game Port Interface .................................................................................................................... 151

9.10.1 Game Port (Base+0h) ........................................................................................................ 151

9.11 FLASH ROM Interface................................................................................................................. 152

9.12 MIDI Interface .............................................................................................................................. 153

9.12.1 MPU-401 Register Interface ............................................................................................... 153

9.12.2 Operation

........................................................................................................ 154

10. DC Electrical Characteristics...................................................................................................................... 155

11. AC Characteristics (Vcc = 5.0V ± 5%, Ta = 0°C to + 70°C)....................................................................... 157

11.1 Clock Input Timings ..................................................................................................................... 157

11.2 LCLK (PCICLK) and LRESET# ................................................................................................... 157

11.3 LPC and SERIRQ Timings .......................................................................................................... 158

11.4 Serial Port, ASKIR, SIR and Consumer Remote Control Timings .............................................. 159

11.5 Modem Control Timings............................................................................................................... 160

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IT8705F V0.4

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