IT8502 View Datasheet(PDF) - ITE Tech. INC.

Part Name

Description

Manufacturer

IT8502

Embedded Controller

ITE Tech. INC. 

IT8502E/F/G

7.7.4.20 4.0 µs Low Register (4P0USL) ........................................................................... 238

7.7.4.21 300 ns Register (300NSREG) ............................................................................ 238

7.7.4.22 250 ns Register (250NSREG) ............................................................................ 238

7.7.4.23 25 ms Register (25MSREG) .............................................................................. 239

7.7.4.24 45.3 µs Low Register (45P3USLREG) ............................................................... 239

7.7.4.25 45.3 µs High Register (45P3USHREG) .............................................................. 239

7.7.4.26 4.7 µs And 4.0 µs High Register (4p7A4P0H) ..................................................... 239

7.8 PS/2 Interface ............................................................................................................................ 240

7.8.1 Overview ....................................................................................................................... 240

7.8.2 Features ........................................................................................................................ 240

7.8.3 Functional Description ................................................................................................... 240

7.8.3.1 Hardware Mode Selected .................................................................................. 240

7.8.3.2 Software Mode Selected .................................................................................... 241

7.8.4 EC Interface Registers ................................................................................................... 241

7.8.4.1 PS/2 Control Register 1-3 (PSCTL1-3)............................................................... 242

7.8.4.2 PS/2 Interrupt Control Register 1-3 (PSINT1-3).................................................. 242

7.8.4.3 PS/2 Status Register 1-3 (PSSTS1-3)................................................................ 243

7.8.4.4 PS/2 Data Register 1-3 (PSDAT1-3) .................................................................. 243

7.9 Digital To Analog Converter (DAC)............................................................................................. 244

7.9.1 Overview ....................................................................................................................... 244

7.9.2 Feature.......................................................................................................................... 244

7.9.3 Functional Description ................................................................................................... 244

7.9.4 EC Interface Registers ................................................................................................... 244

7.9.4.1 DAC Power Down Register (DACPDREG) ......................................................... 245

7.9.4.2 DAC Data Channel 0~5 Register (DACDAT0~5) ................................................ 245

7.10 Analog to Digital Converter (ADC) .............................................................................................. 246

7.10.1 Overview ....................................................................................................................... 246

7.10.2 Features ........................................................................................................................ 246

7.10.3 Functional Description ................................................................................................... 246

7.10.3.1 ADC General Description................................................................................... 247

7.10.3.2 Voltage Measurement and Automatic Hardware Calibration ............................... 247

7.10.3.3 ADC Operation .................................................................................................. 248

7.10.4 EC Interface Registers ................................................................................................... 249

7.10.4.1 ADC Status Register (ADCSTS) ........................................................................ 250

7.10.4.2 ADC Configuration Register (ADCCFG) ............................................................. 251

7.10.4.3 ADC Clock Control Register (ADCCTL) ............................................................. 251

7.10.4.4 Voltage Channel 0 Control Register (VCH0CTL) ................................................ 252

7.10.4.5 Calibration Data Control Register (KDCTL) ........................................................ 253

7.10.4.6 Voltage Channel 1 Control Register (VCH1CTL) ................................................ 254

7.10.4.7 Volt Channel 1 Data Buffer LSB (VCH1DATL) ................................................... 254

7.10.4.8 Volt Channel 1 Data Buffer MSB (VCH1DATM) ................................................. 254

7.10.4.9 Voltage Channel 2 Control Register (VCH2CTL) ................................................ 255

7.10.4.10 Volt Channel 2 Data Buffer LSB (VCH2DATL) ................................................... 255

7.10.4.11 Volt Channel 2 Data Buffer MSB (VCH2DATM) ................................................. 255

7.10.4.12 Voltage Channel 3 Control Register (VCHN3CTL) ............................................. 255

7.10.4.13 Volt Channel 3 Data Buffer LSB (VCH3DATL) ................................................... 256

7.10.4.14 Volt Channel 3 Data Buffer MSB (VCH3DATM) ................................................. 256

7.10.4.15 Volt High Scale Calibration Data Buffer LSB (VHSCDBL)................................... 256

7.10.4.16 Volt High Scale Calibration Data Buffer MSB (VHSCDBM)................................. 256

7.10.4.17 Voltage Channel 0 Data Buffer LSB (VCH0DATL).............................................. 257

7.10.4.18 Voltage Channel 0 Data Buffer MSB (VCH0DATM)............................................ 257

7.10.4.19 Volt High Scale Gain-Error Calibration Data Buffer LSB (VHSGCDBL)............... 257

7.10.4.20 Volt High Scale Gain-Error Calibration Data Buffer MSB (VHSGCDBM) ............. 257

7.10.5 ADC Programming Guide .............................................................................................. 258

7.11 PWM 261

7.11.1 Overview ....................................................................................................................... 261

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IT8502E/F/G V0.7.7

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