em78p809n ELAN Microelectronics Corp, em78p809n Datasheet - Page 20

• Manufacturer Part Number: em78p809n
• Description: 8-bit Microcontroller
• Manufacturer: ELAN Microelectronics Corp

EM78P809N
8-Bit Microcontroller
16 •
Bit 7 ~ Bit 0 ( ADD9 ~ ADD2 ) : AD high 8-bit data buffer.
ADE7
Bit 7
ADD9
Bit 7
ADIC − AD Input Pin Control ( Address: 0Ch )
ADDH − AD High 8-bit Data Buffer ( Address: 0Dh )
Bit 5~ Bit 4 ( ADCK1 ~ ADCK0 ) : AD Conversion Time Select
Bit 7 ~ Bit 0 ( ADE7 ~ ADE0 ) : AD input pin enable control.
Bit 3 ( ADP ) : AD power control
Bit 2 ~ Bit 0 ( ADIS2 ~ ADIS0 ) : Analog Input Pin Select
ADCK1
ADIS2
ADE6
0
0
1
1
0
0
0
0
1
1
1
1
Bit 6
ADP = “0” : Power on
ADP = “1” : Power down
ADD8
Bit 6
ADEx = “0” : PORT9.x act as I/O pin.
ADEx = “1” : PORT9.x act as analog input pin.
ADE5
Bit 5
ADD7
Bit 5
ADCK0
ADIS1
0
1
0
1
ADE4
0
0
1
1
0
0
1
1
Bit 4
ADD6
Bit 4
(This specification is subject to change without further notice)
ADE3
Bit 3
ADD5
Bit 3
( Normal, Idle )
Clock Source
Product Specification (V1.0) 07.26.2005
Reserved
ADIS0
Fc/16
Fc/32
Fc/4
0
1
0
1
0
1
0
1
ADE2
Bit 2
ADD4
Bit 2
ADE1
Bit 1
Analog Input Pin
ADD3
Bit 1
Max. Operating
Frequency (Fc)
1MHz
4MHz
8MHz
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
-
ADE0
ADD2
Bit 0
Bit 0