ii EPSON E0C88832/88862 TECHNICAL MANUAL
CONTENTS
5.4.4 Control of input ports ..............................................................................................................36
5.4.5 Programming note...................................................................................................................38
5.5 Output Ports (R ports) ......................................................................................................39
5.5.1 Configuration of output ports.................................................................................................. 39
5.5.2 Mask option .............................................................................................................................39
5.5.3 High impedance control ..........................................................................................................39
5.5.4 DC output ................................................................................................................................39
5.5.5 Special output ..........................................................................................................................39
5.5.6 Control of output ports ............................................................................................................42
5.5.7 Programming notes .................................................................................................................45
5.6 I/O Ports (P ports) ............................................................................................................46
5.6.1 Configuration of I/O ports.......................................................................................................46
5.6.2 Mask option .............................................................................................................................46
5.6.3 I/O control registers and I/O mode .........................................................................................46
5.6.4 Control of I/O ports................................................................................................................. 47
5.6.5 Programming note...................................................................................................................47
5.7 Serial Interface .................................................................................................................48
5.7.1 Configuration of serial interface............................................................................................. 48
5.7.2 Mask option .............................................................................................................................49
5.7.3 Transfer modes ........................................................................................................................49
5.7.4 Clock source ............................................................................................................................50
5.7.5 Transmit-receive control .........................................................................................................51
5.7.6 Operation of clock synchronous transfer ................................................................................52
5.7.7 Operation of asynchronous transfer .......................................................................................56
5.7.8 Interrupt function .................................................................................................................... 60
5.7.9 Control of serial interface .......................................................................................................62
5.7.10 Programming notes ...............................................................................................................66
5.8 Clock Timer.......................................................................................................................67
5.8.1 Configuration of clock timer ...................................................................................................67
5.8.2 Interrupt function .................................................................................................................... 67
5.8.3 Control of clock timer ............................................................................................................. 69
5.8.4 Programming notes .................................................................................................................71
5.9 Stopwatch Timer ...............................................................................................................72
5.9.1 Configuration of stopwatch timer ...........................................................................................72
5.9.2 Count up pattern......................................................................................................................72
5.9.3 Interrupt function .................................................................................................................... 73
5.9.4 Control of stopwatch timer...................................................................................................... 74
5.9.5 Programming notes .................................................................................................................76
5.10 Programmable Timer........................................................................................................77
5.10.1 Configuration of programmable timer ..................................................................................77
5.10.2 Count operation and setting basic mode...............................................................................77
5.10.3 Setting of input clock .............................................................................................................79
5.10.4 Timer mode............................................................................................................................79
5.10.5 Event counter mode ...............................................................................................................80
5.10.6 Pulse width measurement timer mode...................................................................................80
5.10.7 Interrupt function .................................................................................................................. 81
5.10.8 Setting of TOUT output ......................................................................................................... 81
5.10.9 Transmission rate setting of serial interface......................................................................... 82
5.10.10 Control of programmable timer ..........................................................................................83
5.10.11 Programming notes .............................................................................................................88
5.11 LCD Controller.................................................................................................................89
5.11.1 Configuration of LCD controller ..........................................................................................89
5.11.2 Mask option ...........................................................................................................................89
5.11.3 LCD power supply................................................................................................................. 90
5.11.4 LCD driver ............................................................................................................................90
5.11.5 Display memory.....................................................................................................................93
