Table of Contents
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1 O
1.1 Features ......................................................................................................... 1
1.2 Block Diagram .............................................................................................. 2
1.3 Pin Layout Diagram ..................................................................................... 3
1.4 Pin Description ............................................................................................. 4
1.5 Mask Option .................................................................................................. 4
2 P
CHAPTER
2.1 Power Supply ................................................................................................ 7
2.2 Initial Reset ................................................................................................... 9
2.3 Test Terminal (TEST) ................................................................................... 11
3 CPU, ROM, RAM ________________________________________ 12
3.1 CPU .............................................................................................................. 12
3.2 Code ROM .................................................................................................... 12
3.3 RAM ............................................................................................................. 12
3.4 Data ROM .................................................................................................... 13
CHAPTER
4.1 Memory Map ................................................................................................ 14
4.2 Watchdog Timer ........................................................................................... 19
4.3 Oscillation Circuit ....................................................................................... 21
4.4 Input Ports (K00-K03) ................................................................................ 27
S1C63454 TECHNICAL MANUAL
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S
I
> for oscillation circuit and internal circuits ...................... 8
D1
2.1.2 Voltage <V
> for LCD driving ........................................................ 8
2.2.1 Reset terminal (RESET) ............................................................................. 9
2.2.2 Simultaneous low input to terminals K00-K03 ........................................ 10
2.2.3 Internal register at initial resetting ........................................................... 10
2.2.4 Terminal settings at initial resetting ......................................................... 11
4.2.1 Configuration of watchdog timer .............................................................. 19
4.2.2 Interrupt function ...................................................................................... 19
4.2.3 I/O memory of watchdog timer ................................................................. 20
4.2.4 Programming notes ................................................................................... 20
4.3.1 Configuration of oscillation circuit .......................................................... 21
4.3.2 OSC1 oscillation circuit ............................................................................ 22
4.3.3 OSC3 oscillation circuit ............................................................................ 23
4.3.4 Switching of operating voltage ................................................................. 24
4.3.5 Clock frequency and instruction execution time ....................................... 24
4.3.6 I/O memory of oscillation circuit .............................................................. 25
4.3.7 Programming notes ................................................................................... 26
4.4.1 Configuration of input ports ..................................................................... 27
4.4.2 Interrupt function ...................................................................................... 27
4.4.3 Mask option ............................................................................................... 28
4.4.4 I/O memory of input ports ......................................................................... 29
4.4.5 Programming notes ................................................................................... 30
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