em78p134n ELAN Microelectronics Corp, em78p134n Datasheet - Page 16

• Manufacturer Part Number: em78p134n
• Description: 8-bit Microcontroller With Otp Rom
• Manufacturer: ELAN Microelectronics Corp

EM78P134N
8-Bit Microcontroller with OTP ROM
10 •
Bits 6 ~ 4 (CIRL2 ~ CIRL0): Comparator internal reference level
Bit 3 (CPOUT): Result of the comparator output.
Bit 2 (COE): Comparator enable bit (RB effect when this bit = 1)
Bits 1 ~ 0 (CRCS1 ~ CRCS0): Comparator CIN- channel switch
5.1.14 RD (System Control Register)
Bit 7 (TIMERSC): TCC, TMR clock source select
Bit 6 (CPUS): CPU Oscillator Source Select
TIMERSC
CRCS1
Bit 7
CIRL2
0
0
1
1
0
0
0
0
1
1
1
1
CPUS
Bit 6
0: Comparator function is disabled (default value)
1: Comparator function is enabled
0: Fs, sub frequency for WDT internal RC time base
1: Fm, main-oscillator clock
0: sub-oscillator (fs)
1: main oscillator (fosc)
When CPUS=0, the CPU oscillator selects the sub-oscillator and the
main oscillator is stopped.
CRCS0
CIRL1
0
1
0
1
0
0
1
1
0
0
1
1
The P62/TCC/CinA- Pin Priority is as follows:
IDLE
Bit 5
P62/TCC/CinA- is set as CinA- pin (default)
P66/CinB- is set as CinB- pin
P67/CinC- is set as CinC- pin
Reserved
CinA-
High
CIRL0
0
1
0
1
0
1
0
1
P62/TCC/CinA- Priority
Bit 4
0
(This specification is subject to change without further notice)
Medium
NOTE
Prescale
TCC
Voltage Level (V)
Bit 3
0
Product Specification (V1.6) 06.02.2010
0.15VDD
0.1VDD
0.2VDD
0.3VDD
0.4VDD
0.45VDD
0.5VDD
0.6VDD
Low
P62
Bit 2
0
Bit 1
0
Bit 0
0