S1C63466 TECHNICAL MANUAL
EPSON
i
CONTENTS
CONTENTS
CHAPTER
1OUTLINE ________________________________________________ 1
1.1
Features ........................................................................................................ 1
1.2
Block Diagram .............................................................................................. 2
1.3
Pin Layout Diagram ..................................................................................... 3
1.4
Pin Description ............................................................................................. 5
1.5
Mask Option .................................................................................................. 6
CHAPTER
2POWER SUPPLY AND INITIAL RESET ____________________________ 9
2.1
Power Supply ................................................................................................ 9
2.1.1 Voltage <VD1> for oscillation circuit and internal circuits ..................... 10
2.1.2 Voltage <VC1–VC5> for LCD driving ....................................................... 10
2.2
Initial Reset .................................................................................................. 11
2.2.1 Reset terminal (RESET) ............................................................................ 11
2.2.2 Simultaneous low input to terminals K00–K03 ........................................ 12
2.2.3 Internal register at initial resetting ........................................................... 12
2.2.4 Terminal settings at initial resetting ......................................................... 13
2.3
Test Terminal (TEST) ................................................................................... 13
CHAPTER
3 CPU, ROM, RAM ________________________________________ 14
3.1
CPU .............................................................................................................. 14
3.2
Code ROM .................................................................................................... 14
3.3
RAM ............................................................................................................. 14
3.4
Data ROM .................................................................................................... 15
CHAPTER
4PERIPHERAL CIRCUITS AND OPERATION __________________________ 16
4.1
Memory Map ................................................................................................ 16
4.2
Watchdog Timer ........................................................................................... 22
4.2.1 Configuration of watchdog timer .............................................................. 22
4.2.2 Interrupt function ...................................................................................... 22
4.2.3 I/O memory of watchdog timer ................................................................. 23
4.2.4 Programming notes ................................................................................... 23
4.3
Oscillation Circuit ....................................................................................... 24
4.3.1 Configuration of oscillation circuit .......................................................... 24
4.3.2 OSC1 oscillation circuit ............................................................................ 24
4.3.3 OSC3 oscillation circuit ............................................................................ 25
4.3.4 Switching of operating voltage ................................................................. 26
4.3.5 Clock frequency and instruction execution time ...................................... 26
4.3.6 I/O memory of oscillation circuit .............................................................. 27
4.3.7 Programming notes ................................................................................... 28
4.4
Input Ports (K00–K03 and K10–K13) ......................................................... 29
4.4.1 Configuration of input ports ..................................................................... 29
4.4.2 Interrupt function ...................................................................................... 29
4.4.3 Mask option ............................................................................................... 30
4.4.4 I/O memory of input ports ......................................................................... 31
4.4.5 Programming notes ................................................................................... 33