Epson S1C63558 - Manual (Page 7)

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 D1 > for oscillation circuit and internal circuits ...................... 8
2.1.2 Voltage 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