KB3700

KB3700 Keyboard Controller Datasheet0 R/WC1Interrupt Pending Flag of PS2 received byte,Clear this bit will also clear bit 4~7 and RX timeout flag for receiving next bytefrom a PS/2 device.0PS2 Transmitter / Receiver Control 07 RSV 06 R/W Transmit Byte Port is PS2 port 2 05 R/W Transmit Byte Port is PS2 port 1 0E2PS2CTRL4 RSV 0FE3 WO Write 1 to force reset PS2 transmitter state, for emergency usage. 02 WO Write 1 to force reset PS2 receiver state, for emergency usage. 01 RO Flag of PS2 RX timeout 00 R/WEnable PS2 transmit data port,This bit should be set for transmitting a byte (write to PS2DATA) to a device.0PS2 DATA 0E3PS2DATA7~0 R/WWrite to start a byte transmitting to a PS2 device, and clear previous state.Read to get the data of received byte for a PS2 device.0FEPS2 Configuration 27-2 RSV Reserved.E4PS2CFG21 R/WPS2 protocol waiting time enable1. Wait 16 us after PS/2 bus is idle (clock-high,data-high), when PS/2 moduletransmits the command to divice.2. In the protocol of PS/2 module to device, the clock is low first then the datawaits 16 us to be low.0 R/W PS2CLK / PS2DAT input debounce enable. (0: 1 us; 1: 2 us)PS2 Pin Input Status7 RSV6 R/W PS2 Port 2 Clock5 R/W PS2 Port 1 ClockE5PS2PINS4 RSV3 RSV2 R/W PS2 Port 2 Data1 R/W PS2 Port 1 Data0 RSVPS2 Pin Output7 RSV6 R/W PS2 Port 2 Clock5 R/W PS2 Port 1 ClockE6PS2PINO4 RSV3 RSV2 R/W PS2 Port 2 Data1 R/W PS2 Port 1 Data0 RSVCopyright©2006, ENE Technology Inc. 25