CP80S54E ETC2 [List of Unclassifed Manufacturers], CP80S54E Datasheet - Page 11

• Manufacturer Part Number: CP80S54E
• Description: EPROM/ROM-Based 8-Bit Microcontroller Series
• Manufacturer: ETC2 [List of Unclassifed Manufacturers]

WUB5 : = 0, Disable the input change interrupt/wake-up function of IOB5 pin.
WUB6 : = 0, Disable the input change interrupt/wake-up function of IOB6 pin.
WUB7 : = 0, Disable Enable the input change interrupt/wake-up function of IOB7 pin.
2.1.9 PCHBUF (High Byte Buffer of Program Counter)
There is only 1 bit in CP80S54/S54E/55/55E. And there are 2 bits in CP80S56/S56E.
See 2.1.3 for detail description.
2.1.10 PDCON (Pull-down Control Register)
/PDA0 : = 0, Enable the internal pull-down of IOA0 pin.
/PDA1 : = 0, Enable the internal pull-down of IOA1 pin.
/PDA2 : = 0, Enable the internal pull-down of IOA2 pin.
/PDA3 : = 0, Enable the internal pull-down of IOA3 pin.
/PDB0 : = 0, Enable the internal pull-down of IOB0 pin.
/PDB1 : = 0, Enable the internal pull-down of IOB1 pin.
/PDB2 : = 0, Enable the internal pull-down of IOB2 pin.
/PDB3 : = 0, Enable the internal pull-down of IOB3 pin.
0Ah (r/w)
0Bh (r/w)
Address
Address
= 1, Enable the input change interrupt/wake-up function of IOB4 pin.
= 1, Enable the input change interrupt/wake-up function of IOB5 pin.
= 1, Enable the input change interrupt/wake-up function of IOB6 pin.
= 1, Enable the input change interrupt/wake-up function of IOB7 pin.
= 1, Disable the internal pull-down of IOA0 pin.
= 1, Disable the internal pull-down of IOA1 pin.
= 1, Disable the internal pull-down of IOA2 pin.
= 1, Disable the internal pull-down of IOA3 pin.
= 1, Disable the internal pull-down of IOB0 pin.
= 1, Disable the internal pull-down of IOB1 pin.
= 1, Disable the internal pull-down of IOB2 pin.
= 1, Disable the internal pull-down of IOB3 pin.
PCHBUF
PDCON
Name
Name
/PDB3
B7
B7
-
/PDB2
B6
B6
-
/PDB1
B5
B5
-
/PDB0
B4
B4
-
/PDA3
B3
B3
-
CP80S54/56
/PDA2
B2
B2
2 MSBs Buffer of PC
/PDA1
Rev0.1 Nov 30, 2005
B1
B1
P.11/AT8PS54/S56
/PDA0
B0
B0