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PDF KB3930 Data sheet ( Hoja de datos )
| Número de pieza | KB3930 | |
| Descripción | Keyboard Controller | |
| Fabricantes | ENE | |
| Logotipo |  |
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KB3930 for OLPC
Keyboard Controller
Data Sheet
V 0.2
May. 2010
www.DataSheet.net/
ENE RESERVES THE RIGHT TO AMEND THIS DOCUMENT WITHOUT NOTICE AT ANY TIME. ENE
ASSUMES NO RESPONSIBILITY FOR ANY ERRORS APPEAR IN THE DOCUMENT, AND ENE DISCLAIMS
ANY EXPRESS OR IMPLIED WARRANTY, RELATING TO SALE AND/OR USE OF ENE PRODUCTS
INCLUDING LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, OR
INFRINGEMENT OF ANY PATENTS, COPYRIGHTS OR OTHER INTELLECTUAL PROPERTY RIGHTS.
Headquarters
4F-1, No.9, Prosperity Rd.,
Science-based Industrial Park,
Hsinchu City, Taiwan, R.O.C
TEL: 886-3-6662888
FAX: 886-3-6662999
http://www.ene.com.tw
Copyright©2010, ENE Technology Inc. All rights reserved.
Taipei Office
4F, No.88, Bauchiau Rd.
Shindian City, Taipei,
Taiwan, R.O.C.
TEL: 886-2-89111525
FAX: 886-2-89111523
Datasheet pdf - http://www.DataSheet4U.co.kr/
1 page  
KB3930 Keyboard Controller Datasheet
4.12.1 WDT Function Description ................................................................85
4.12.2 WDT Registers Description ...............................................................85
4.12.3 WDT Programming Sample ...............................................................88
4.13 LOW PIN COUNT INTERFACE (LPC) ................................................................89
4.13.1 LPC Function Description .................................................................89
4.13.2 LPC I/O Decode Range ......................................................................89
4.13.3 LPC Memory Decode Range .............................................................89
4.13.4 FWH Memory Decode Range ............................................................90
4.13.5 Index-I/O Port......................................................................................90
4.13.6 Extended I/O Port (Debug Port, Port80) ...........................................91
4.13.7 LPC Registers Description ................................................................92
4.14 X-BUS INTERFACE (XBI) .............................................................................100
4.14.1 XBI Function Description ................................................................100
4.14.2 XBI SPI Enhancement ......................................................................100
4.14.3 XBI Registers Description ...............................................................103
4.15 CONSUMER IR CONTROLLER (CIR) ..............................................................109
4.15.1 CIR Function Description ................................................................109
4.15.2 CIR Block Diagram ........................................................................... 111
4.15.3
CIR
Remote
Protocol
.......................................................................
www.DataSheet.net/
112
4.15.3.1 Philips RC5 Protocol............................................................................................112
4.15.3.2 Philips RC6 Protocol............................................................................................113
4.15.3.3 NEC Protocol ........................................................................................................113
4.15.4 CIR Automatic Carrier Frequency Detection and Modulation ......114
4.15.5 CIR Registers Description ...............................................................116
4.15.3 CIR Programming Sample ...............................................................120
4.16 PS/2 INTERFACE (PS/2) ..............................................................................121
4.17 EMBEDDED CONTROLLER (EC) ....................................................................122
4.17.1 EC Function Description .................................................................122
4.17.2 EC Command Program Sequence ..................................................123
4.17.3 EC SCI Generation ...........................................................................124
4.17.4 EC/KBC Clock Configuration ..........................................................125
4.17.5 A/D Converter Control......................................................................125
4.17.6 D/A Converter Control......................................................................127
4.17.7 Power Management Control............................................................128
4.17.8 EC Registers Description ................................................................129
4.18 GENERAL PURPOSE WAKE-UP CONTROLLER (GPWU) ..................................140
4.18.1 GPWU Function Description ...........................................................140
Copyright©2010, ENE Technology Inc.
iv
Datasheet pdf - http://www.DataSheet4U.co.kr/
5 Page 
KB3930 Keyboard Controller Datasheet
Analog-to-Digital Converter (ADC)
6 ADC channels with 10-bit resolution.
All ADC pins can be alternatively configured as GPI (general purpose input)
function.
Pulse Width Modulator (PWM)
6 PWM channels are provided. (8-bit *2, 14-bit *2 and FANPWM(12-bit) *2)
Clock source selectable:.
1MHz/64KHz/4KHz/256Hz (for 8-bit PWM)
Peripheral clock or 1MHz (for 14-bit PWM)
Peripheral clock (for FANPWM)
Duty cycle programmable and cycle time up to 1 sec(for 8-bit PWM)
Watch Dog Timer (WDT)
32.768KHz input clock.
10-bit counter with 32ms unit for watchdog reset.
Three watchdog reset mechanisms.
Reset 8051 only
Reset whole chip, except GPIO module.
Reset whole chip including GPw IOw mow du. le.D a t a S h e e t . n e t /
Real Time Clock
32.768KHz input clock.
24-bit timer support.
General Purpose Timer (GPT)
Two 16-bit and two 8-bit general purpose timer with 32.768KHz clock source.
General Purpose Wakeup (GPWU)
Those I/O with GPI (general purpose input) configuration can generate
interrupts or wakeup events, except those pins named in GPXIOAxx.
Copyright©2010, ENE Technology Inc.
3
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