em78p5842 ELAN Microelectronics Corp, em78p5842 Datasheet - Page 8

• Manufacturer Part Number: em78p5842
• Description: 8-bit Micro-controller
• Manufacturer: ELAN Microelectronics Corp

VII. Functional Descriptions
*Address 00~0F with page0~page3 are special registers. Address 10~1F are global with general purpose memory. By
execute MOV instruction, MCU can read or write these register directly and RAM bank select bits (RB1, RB0 in R4
page0) will be ignored. Address 20~ 3F are general purpose RAM too, but user must indicate the bank number before
access data.
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* This specification is subject to change without notice.
VII.1 Operational Registers
Register configuration
Addr R PAGE0
0A PLL, Main clock,
0B
0C PortC I/O data
0D
0E Interrupt flag
0F Interrupt flag
1F
3F (32x8
00
01
02
03
04
05
06
07
08
09
10
20
:
:
Indirect addressing
TCC
PC
Page, Status
RAM bank, RSR
Program ROM page
Port6 I/O data
Port7 I/O data
Port9 I/O data
WDTE
16 bytes
Common registers
Common registers
bank)
Bank0
for
each
R PAGE1
ADC MSB output
data
ADC output data
buffer
Counter1 data
Bank1
R PAGE registers
R PAGE2
6
Bank2
R PAGE3
PWM control
Duty of PWM1
PWM1 control
Duty of PWM1
Period of PWM1
Duty of PWM2
PWM2 control
Duty of PWM2
Period of PWM2
Bank3
EM785840/5841/5842
8-bit Micro-controller
2004/11/10 V1.2