Specifications
Table Of Contents
- Technical Hardware
- 1 OVERVIEW
- 2 POWER SUPPLY AND INITIAL RESET
- 3 CPU, ROM, RAM
- 4 PERIPHERAL CIRCUITS AND OPERATION
- 4.1 Memory Map
- 4.2 Resetting Watchdog Timer
- 4.3 Oscillation Circuit
- 4.4 Input Ports (K00–K03, K10)
- 4.5 Output Ports (R00–R03)
- 4.6 I/O Ports (P00–P03, P10–P13, P20–P23)
- 4.7 LCD Driver (COM0–COM3, SEG0–SEG31)
- 4.8 Clock Timer
- 4.9 Stopwatch Timer
- 4.10 Programmable Timer
- 4.11 Serial Interface (SIN, SOUT, SCLK, SRDY)
- 4.12 A/D Converter
- 4.13 General-purpose Operation Amplifier (AMP)
- 4.14 SVD (Supply Voltage Detection) Circuit
- 4.15 Interrupt and HALT/SLEEP
- 5 SUMMARY OF NOTES
- 6 DIAGRAM OF BASIC EXTERNAL CONNECTIONS
- 7 CHARACTERISTICS
- 8 PACKAGE
- 9 PAD LAYOUT
- Technical Software
- 1 INTRODUCTION
- 2 BLOCK DIAGRAM
- 3 PROGRAM MEMORY (ROM)
- 4 DATA MEMORY
- 5 INITIAL RESET
- 6 PERIPHERAL CIRCUITS
- 6.1 Watchdog Timer
- 6.2 OSC3
- 6.3 Input Ports (K00–K03 and K10)
- 6.4 Output Ports (R00–R03)
- 6.5 I/O Ports (P00–P03, P10–P13 and P20–P23)
- 6.6 LCD Driver
- 6.7 Clock Timer
- 6.8 Stopwatch Timer
- 6.9 Programmable Timer
- 6.10 Serial Interface Circuit
- 6.11 Amplifier
- 6.12 SVD (Supply Voltage Detection) Circuit
- 6.13 A/D Converter
- 6.14 Sleep
- 6.15 Interrupt
- 7 SUMMARY OF NOTES
- APPENDIX
II-10 EPSON S1C62740 TECHNICAL SOFTWARE
CHAPTER 5: INITIAL RESET
INITIAL RESETCHAPTER 5
5.1 Initialized Status
The CPU core and peripheral circuits are initialized by initial
resetting as follows:
Table 5.1.1
Initialized status
CPU Core
8
4
4
8
10
10
4
4
4
1
1
1
1
Program counter step
Program counter page
New page pointer
Stack pointer
Index register IX
Index register IY
Rejister pointer
General-purpose register A
General-purpose register B
Interrupt flag
Decimal flag
Zero flag
Carry flag
00H
1H
1H
Undefined
Undefined
Undefined
Undefined
Undefined
Undefined
0
0
Undefined
Undefined
Name
Number of bits
Setting value
Peripheral circuits
4
4
–
RAM
Display memory
Other peripheral circuit
Undefined
Undefined
*1
Name Number of bits
Setting value
PCS
PCP
NPP
SP
IX
IY
RP
A
B
I
D
Z
C
Symbol
*2
*1 See Tables 4.2.1(a)–(d)
*2 Bits corresponding to COM0 is set to 1.
Note: Undefined values must be defined by the program.