
Data Sheet
ADuC832
Rev. B | Page 25 of 92
Pin No.
Mnemonic
MQFP
LFCSP
Type
Description
P0.2/AD2
45
48
I/O
Input/Output Port 0 (P0.2). Port 0 is an 8-Bit Open-Drain Bidirectional I/O Port. Port 0
pins that have 1s written to them float and in that state can be used as high
impedance inputs.
External Memory Address and Data (AD2). Port 0 is also the multiplexed low order
address and data bus during accesses to external program or data memory. In this
application, it uses strong internal pull-ups when emitting 1s.
P0.3/AD3
46
49
I/O
Input/Output Port 0 (P0.3). Port 0 is an 8-Bit Open-Drain Bidirectional I/O Port. Port 0
pins that have 1s written to them float and in that state can be used as high
impedance inputs.
I/O
External Memory Address and Data (AD3). Port 0 is also the multiplexed low order
address and data bus during accesses to external program or data memory. In this
application, it uses strong internal pull-ups when emitting 1s.
P0.4/AD4
49
52
I/O
Input/Output Port 0 (P0.4). Port 0 is an 8-Bit Open-Drain Bidirectional I/O Port. Port 0
pins that have 1s written to them float and in that state can be used as high
impedance inputs.
I/O
External Memory Address and Data (AD4). Port 0 is also the multiplexed low order
address and data bus during accesses to external program or data memory. In this
application, it uses strong internal pull-ups when emitting 1s.
P0.5/AD5
50
53
I/O
Input/Output Port 0 (P0.5). Port 0 is an 8-Bit Open-Drain Bidirectional I/O Port. Port 0
pins that have 1s written to them float and in that state can be used as high
impedance inputs.
I/O
External Memory Address and Data (AD5). Port 0 is also the multiplexed low order
address and data bus during accesses to external program or data memory. In this
application, it uses strong internal pull-ups when emitting 1s.
P0.6/AD6
51
54
I/O
Input/Output Port 0 (P0.6). Port 0 is an 8-Bit Open-Drain Bidirectional I/O Port. Port 0
pins that have 1s written to them float and in that state can be used as high
impedance inputs.
I/O
External Memory Address and Data (AD6). Port 0 is also the multiplexed low order
address and data bus during accesses to external program or data memory. In this
application, it uses strong internal pull-ups when emitting 1s.
P0.7/AD7
52
56
I/O
Input/Output Port 0 (P0.7). Port 0 is an 8-Bit Open-Drain Bidirectional I/O Port. Port 0
pins that have 1s written to them float and in that state can be used as high
impedance inputs.
External Memory Address and Data (AD7). Port 0 is also the multiplexed low order
address and data bus during accesses to external program or data memory. In this
application, it uses strong internal pull-ups when emitting 1s.