Epson S1C33L03 10

TABLE OF CONTENTS

III-7 CLOCK TIMER ............................................................................................................	B-III-7-1
Configuration of Clock Timer.....................................................................................................	B-III-7-1
Control and Operation of the Clock Timer ................................................................................	B-III-7-2
Interrupt Function.......................................................................................................................	B-III-7-4
Examples of Use of Clock Timer...............................................................................................	B-III-7-6
I/O Memory of Clock Timer .......................................................................................................	B-III-7-7
Programming Notes.................................................................................................................	B-III-7-12

III-8 SERIAL INTERFACE ..................................................................................................	B-III-8-1
Configuration of Serial Interfaces..............................................................................................	B-III-8-1
Features of Serial Interfaces .........................................................................................	B-III-8-1
I/O Pins of Serial Interface.............................................................................................	B-III-8-2
Setting Transfer Mode ...................................................................................................	B-III-8-3
Clock-Synchronized Interface ...................................................................................................	B-III-8-4
Outline of Clock-Synchronized Interface.......................................................................	B-III-8-4
Setting Clock-Synchronized Interface...........................................................................	B-III-8-5
Control and Operation of Clock-Synchronized Transfer ..............................................	B-III-8-7
Asynchronous Interface...........................................................................................................	B-III-8-12
Outline of Asynchronous Interface ..............................................................................	B-III-8-12
Setting Asynchronous Interface ..................................................................................	B-III-8-13
Control and Operation of Asynchronous Transfer......................................................	B-III-8-16
IrDA Interface...........................................................................................................................	B-III-8-21
Outline of IrDA Interface ..............................................................................................	B-III-8-21
Setting IrDA Interface ..................................................................................................	B-III-8-21
Control and Operation of IrDA Interface .....................................................................	B-III-8-23
Serial Interface Interrupts and DMA........................................................................................	B-III-8-24
I/O Memory of Serial Interface ................................................................................................	B-III-8-28
Programming Notes.................................................................................................................	B-III-8-46

III-9 INPUT/OUTPUT PORTS.............................................................................................	B-III-9-1
Input Ports (K Ports) ..................................................................................................................	B-III-9-1
Structure of Input Port....................................................................................................	B-III-9-1
Input-Port Pins ...............................................................................................................	B-III-9-2
Notes on Use .................................................................................................................	B-III-9-2
I/O Memory of Input Ports .............................................................................................	B-III-9-3
I/O Ports (P Ports) .....................................................................................................................	B-III-9-4
Structure of I/O Port.......................................................................................................	B-III-9-4
I/O Port Pins...................................................................................................................	B-III-9-4
I/O Control Register and I/O Modes..............................................................................	B-III-9-5
I/O Memory of I/O Ports.................................................................................................	B-III-9-6
Input Interrupt ..........................................................................................................................	B-III-9-12
Port Input Interrupt.......................................................................................................	B-III-9-12
Key Input Interrupt .......................................................................................................	B-III-9-14
Control Registers of the Interrupt Controller...............................................................	B-III-9-16
I/O Memory for Input Interrupts ...................................................................................	B-III-9-18
Programming Notes.................................................................................................................	B-III-9-25

EPSON

S1C33L03 TECHNICAL MANUAL