S1C63406/408 TECHNICAL MANUAL
EPSON
i
CONTENTS
CONTENTS
CHAPTER
1OUTLINE ________________________________________________ 1
1.1
Features ......................................................................................................... 1
1.2Block Diagram .............................................................................................. 3
1.3
Pin Layout Diagram ..................................................................................... 5
1.4
Pin Description ............................................................................................. 7
1.5
Mask Option .................................................................................................. 9
CHAPTER
2POWER SUPPLY AND INITIAL RESET ____________________________ 11
2.1
Power Supply ............................................................................................... 11
2.1.1 Voltage <VD1> for internal circuits .......................................................... 12
2.1.2 Voltage <VOSC> for OSC1 oscillation circuit .......................................... 12
2.1.3 Voltage <VC1, VC2, VC4, VC5> for LCD driving ....................................... 12
2.2
Initial Reset .................................................................................................. 13
2.2.1 Reset terminal (RESET) ............................................................................ 13
2.2.2 Simultaneous low input to terminals K00–K03 ........................................ 14
2.2.3 Internal reset circuit .................................................................................. 14
2.2.4 Internal register at initial resetting ........................................................... 15
2.2.5 Terminal settings at initial resetting ......................................................... 15
2.3
Test Terminal (TEST) ................................................................................... 15
CHAPTER
3 CPU, ROM, RAM ________________________________________ 16
3.1
CPU .............................................................................................................. 16
3.2
Code ROM .................................................................................................... 16
3.3
RAM ............................................................................................................. 17
3.4
Data ROM .................................................................................................... 17
CHAPTER
4PERIPHERAL CIRCUITS AND OPERATION __________________________ 18
4.1
Memory Map ................................................................................................ 18
4.2Watchdog Timer ........................................................................................... 23
4.2.1 Configuration of watchdog timer .............................................................. 23
4.2.2 Interrupt function ...................................................................................... 23
4.2.3 I/O memory of watchdog timer ................................................................. 24
4.2.4 Programming notes ................................................................................... 24
4.3
Oscillation Circuit ....................................................................................... 25
4.3.1 Configuration of oscillation circuit .......................................................... 25
4.3.2 OSC1 oscillation circuit ............................................................................ 26
4.3.3 OSC3 oscillation circuit ............................................................................ 27
4.3.4 Switching of operating voltage ................................................................. 28
4.3.5 Clock frequency and instruction execution time ....................................... 28
4.3.6 I/O memory of oscillation circuit .............................................................. 29
4.3.7 Programming notes ................................................................................... 30
4.4
Input Ports (K00–K03) ................................................................................ 31
4.4.1 Configuration of input ports ..................................................................... 31
4.4.2 Mask option ............................................................................................... 31
4.4.3 Interrupt function ...................................................................................... 31
4.4.4 I/O memory of input ports ......................................................................... 33
4.4.5 Programming notes ................................................................................... 35