S1C63558 TECHNICAL MANUAL
EPSON
i
CONTENTS
C
ONTENTS
CHAPTER
1 O
UTLINE
________________________________________________ 1
1.1
Features ........................................................................................................ 1
1.2
Block Diagram .............................................................................................. 2
1.3
Pin Layout Diagram ..................................................................................... 3
1.4
Pin Description ............................................................................................. 4
1.5
Mask Option .................................................................................................. 5
CHAPTER
2 P
OWER
S
UPPLY
AND
I
NITIAL
R
ESET
____________________________ 8
2.1
Power Supply ................................................................................................ 8
2.1.1 Voltage <V
D1
> for oscillation circuit and internal circuits ...................... 8
2.1.2 Voltage <V
C1
–V
C5
> for LCD driving ........................................................ 8
2.2
Initial Reset ................................................................................................... 9
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
2.3
Test Terminal (TEST) ................................................................................... 11
CHAPTER
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 P
ERIPHERAL
C
IRCUITS
AND
O
PERATION
__________________________ 14
4.1
Memory Map ................................................................................................ 14
4.2
Watchdog 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 ............................................................................ 25
4.3.3 OSC3 oscillation circuit ............................................................................ 26
4.3.4 Switching the CPU operating clock .......................................................... 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 ................................................................................... 27
4.4
Input Ports (K00–K03 and K10–K13) ......................................................... 28
4.4.1 Configuration of input ports ..................................................................... 28
4.4.2 Interrupt function ...................................................................................... 28
4.4.3 Mask option ............................................................................................... 29
4.4.4 I/O memory of input ports ......................................................................... 30
4.4.5 Programming notes ................................................................................... 32
4.5
Output Ports (R00–R03, R10–R13 and R20–R23) ...................................... 33
4.5.1 Configuration of output ports ................................................................... 33
4.5.2 Mask option ............................................................................................... 33
