EM78P341N/342N/343N
8-Bit Microprocessor with OTP ROM
NOTE
The P55/OSCI/ADC6 pin cannot be applied to OSCI and ADC6 at the same time.
If P55/OSCI/ADC6 functions as OSCI oscillator input pin, then ADE6 bit for R8 must
be ”0” and ADIS2~0 do not select “ 110”. The P55/OSCI/ADC6 pin priority is as follows:
P55/OSCI/ADC6 Pin Priority
High
OSCI
Medium
ADC6
Low
P55
The P70/OSCO/ADC5 pin cannot be applied to OSCO and ADC5 at the same time.
If P70/OSCO/ADC5 acts as OSCO oscillator input pin, then ADE5 bit for R8 must be ”0”
and ADIS2~0 do not select “101”. The P70/OSCO/ADC5 pin priority is as follows:
P70/OSCO/ADC5 Pin Priority
High
Medium
ADC5
Low
P70
OSCO
The P66/IR OUT/ADC4 pin cannot be applied to IR OUT and ADC4 at the same time.
If P67/IR OUT/ADC4 functions as ADC4 analog input pin, then IROUTE bit for IOCA0
must be “0”..
If P67/IR OUT/ADC4 functions as IR OUT analog input pin, then ADE4 bit for R8 must
be ”0” and ADIS2~0 do not select “100”.
The P67/IR OUT/ADC4 pin priority is as follows:
P67/IR OUT/ADC4 Pin Priority
High
Medium
IR OUT
Low
P67
ADC7
6.1.9 R9 (ADCON: ADC Control Register)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
VREFS
CKR1
CKR0
ADRUN
ADPD
ADIS2
ADIS1
ADIS0
Bit 7 (VREFS): The input source of the Vref of the ADC
0 = The Vref of the ADC is connected to Vdd (default value), and the
VREF/TCC/P54 pin carries out the function of P54
1 = The Vref of the ADC is connected to VREF/TCC/P54
Product Specification (V1.0) 12.01.2006
(This specification is subject to change without further notice)
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ELAN [ ELAN MICROELECTRONICS CORP ]
