
S1C6N3B0 TECHNICAL MANUAL
EPSON
i
CONTENTS
CONTENTS
CHAPTER
1INTRODUCTION ____________________________________________ 1
1.1
Configuration ................................................................................................ 1
1.2
Features ......................................................................................................... 1
1.3
Block Diagram .............................................................................................. 2
1.4
Pin Layout Diagram ..................................................................................... 3
1.5
Pin Description ............................................................................................. 4
CHAPTER
2POWER SUPPLY AND INITIAL RESET ____________________________ 5
2.1
Power Supply ................................................................................................ 5
2.1.1 Voltage <VD1> for oscillation circuit and internal circuits ...................... 6
2.1.2 Voltage <VC1–VC3> for LCD driving ........................................................ 6
2.2
Initial Reset ................................................................................................... 6
2.2.1 Simultaneous low input to input ports (K00–K03) .................................... 6
2.2.2 Reset terminal (RESET) ............................................................................. 7
2.2.3 Oscillation detection circuit ....................................................................... 8
2.2.4 Internal register following initialization ................................................... 8
2.3
Test Terminal (TEST) .................................................................................... 8
CHAPTER
3 CPU, ROM, RAM ________________________________________ 9
3.1
CPU ............................................................................................................... 9
3.2
ROM .............................................................................................................. 9
3.3
RAM .............................................................................................................. 9
CHAPTER
4PERIPHERAL CIRCUITS AND OPERATION __________________________ 10
4.1
Memory Map ................................................................................................ 10
4.2
Oscillation Circuit ....................................................................................... 13
4.2.1 Oscillator type ........................................................................................... 13
4.2.2 Mask option ............................................................................................... 13
4.2.3 Crystal oscillation circuit .......................................................................... 13
4.2.4 CR oscillation circuit ................................................................................ 13
4.2.5 Ceramic oscillation circuit ........................................................................ 14
4.2.6 Frequency divider ...................................................................................... 14
4.2.7 Operation in SLEEP mode ........................................................................ 15
4.3
Input Ports (K00–K03) ................................................................................ 16
4.3.1 Configuration of input port ....................................................................... 16
4.3.2 Interrupt function ...................................................................................... 16
4.3.3 Mask option ............................................................................................... 17
4.3.4 Control of input ports ................................................................................ 18
4.3.5 Programming notes ................................................................................... 19
4.4
Output Ports (R00–R03) .............................................................................. 20
4.4.1 Configuration of output port ..................................................................... 20
4.4.2 Mask option ............................................................................................... 20
4.4.3 Special output ............................................................................................ 21
4.4.4 Control of output ports .............................................................................. 23
4.4.5 Programming note ..................................................................................... 24