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EM78P312N
8-Bit Microcontroller
Product Specification
(V1.0) 10.03.2006
•
13
(This specification is subject to change without further notice)
Bit 6 ( ADRUN )
: AD Conversion start
ADRUN = “0” :
Reset on completion of the conversion by hardware, this bit
cannot be reset by software.
ADRUN = “1” :
Conversion starts
Bit 5~ Bit 4 ( ADCK1 ~ ADCK0 ) :
AD Conversion Time Select
ADCK1
ADCK0
Clock Source
( Normal, Idle )
Max. Operating
Frequency (Fc)
0 0
Fc/4
1MHz
0 1
Fc/16
4MHz
1 0
Fc/32
8MHz
1 1
Reserved
-
Bit 3 ( ADP )
: AD power control
ADP = “0” :
Power on
ADP = “1” :
Power down
Bit 2 ~ Bit 0 ( ADIS2 ~ ADIS0 ) :
Analog Input Pin Select
ADIS2
ADIS1
ADIS0
Analog Input Pin
0 0 0
AD0
0 0 1
AD1
0 1 0
AD2
0 1 1
AD3
1 0 0
AD4
1 0 1
AD5
1 1 0
AD6
1 1 1
AD7
Bank 1 RC ADIC (AD Input Pin Control)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
ADE7
ADE6
ADE5 ADE4 ADE3 ADE2 ADE1 ADE0
Bit 7 ~ Bit 0 ( ADE7 ~ ADE0 )
:
AD input pin enable control.
ADEx = “0” :
Port 9.x functions as I/O pin
ADEx = “1” :
Port 9.x functions as analog input pin
Bank 1 RD ADDH (AD High 8-bit Data Buffer)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
ADD9 ADD8 ADD7 ADD6 ADD5 ADD4 ADD3 ADD2
Bit 7 ~ Bit 0 ( ADD9 ~ ADD2 ) :
AD high 8-bit data buffer