em78p809n ELAN Microelectronics Corp, em78p809n Datasheet - Page 26

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

EM78P809N
8-Bit Microcontroller
22 •
Bit 7
Bit 7
Bit 7
PLC1 (Pull Low Control Register 1 ( Address : 0Bh )
PHC2 − Pull High Control Register 2 ( Address: 0Ch )
PLC2 − Pull Low Control 2 ( Address: 0Dh )
R10~R1F and R20~R3F (including Banks 0~3) are General Purpose Register
Bit 3 ~ 0 ( /PLE63 ~ /PLE60 ) : bits 3 ~ 0 of Port 6 Pull low enable bit
Bit 3 ~ 0 ( /PHE73 ~ /PHE70 ) : bits 3 ~ 0 of Port 7 Pull high enable bit
Bit 3 ~ 0 ( /PLE73 ~ /PLE70 ) : bits 3 ~ 0 of Port 7 Pull low enable bit
Bit 3 ~ 0 ( /PHE63 ~ /PHE60 ) : bit 3 ~ 0 of Port 6 Pull high enable bit
Bit 5 ~ 4 ( /PLE81 ~ /PLE80 ) : bits 1, 0 of Port 8 Pull low enable bit
-
-
-
/PLE7x = “1” : Disable P7x pull low
Bit 6
Bit 6
Bit 6
/PHE6x = “0” : Enable P6x pull high
/PHE6x = “1” : Disable P6x pull high
/PHE7x = “0” : Enable P7x pull high
/PHE7x = “1” : Disable P7x pull high
/PLE7x = “0” : Enable P7x pull low
/PLE8x = “0” : Enable P8x pull low
/PLE8x = “1” : Disable P8x pull low
/PLE6x = “0” : Enable P6x pull low
/PLE6x = “1” : Disable P6x pull low
-
-
-
/PLE81
Bit 5
Bit 5
Bit 5
-
-
/PLE80
Bit 4
Bit 4
Bit 4
(This specification is subject to change without further notice)
-
-
/PHE73
/PLE63
/PLE73
Bit 3
Bit 3
Bit 3
Product Specification (V1.0) 07.26.2005
/PLE62
/PHE72
/PLE72
Bit 2
Bit 2
Bit 2
/PLE61
/PHE71
/PLE71
Bit 1
Bit 1
Bit 1
/PHE70
/PLE60
/PLE70
Bit 0
Bit 0
Bit 0