MC80F0224 Datasheet, PDF (12/128 Pages) List of Unclassifed Manufacturers – 8-BIT SINGLE-CHIP MICROCONTROLLERS

MC80F0208/16/24
Preliminary
5.1 Pin Description
5.1.1 Normal Function Pin Description
PIN NAME In/Out
Function
R00~R07
R10
R11
R12
R13
R15
R30
R31
R32
R33
R40
R41
R42
R43
R44
R45
R46
R47
R50
R51
R54
R60~R67
RESET
X_IN
X_OUT
AV_DD
V_DD
V_SS
Port0
I/O
8-bit I/O port.
Can be set in input or output mode in 1-bit units.
Internal pull-up resistor PU0 can be used via software.
Port 1.
I/O
5-bit I/O port.
Can be set in input or output mode in 1-bit units.
Internal pull-up resistor PU1 can be used via software.
Port 3.
I/O 4-bit I/O port.
Can be set in input or output mode in 1-bit units.
Port 4.
I/O
8-bit I/O port.
Can be set in input or output mode in 1-bit units.
Internal pull-up resistor PU4 can be used via software.
Port 5.
I/O 3-bit I/O port.
Can be set in input or output mode in 1-bit units.
Port 6.
I/O 8-bit I/O port.
Can be set in input or output mode in 1-bit units.
I System reset input.
I
Crystal connection for main system clock oscillation.
O
-
Analog power/reference voltage input to A/D converter.
Set the same potential as VDD.
- Positive power supply.
- Ground potential.
Table 5-1 Normal Function Pin Description
Initial
state
Alternate
Function
Input
-
Input
Input
Input
Input
Input
Input
Input
Output
-
-
-
INT0
INT1
INT2
BUZO
EC0
-
ACLK1
RxD1
TxD1
-
-
SCK
SI
SO
ACLK0
RxD0
TxD0
INT3
EC1
PWM3O/T3O
AN0~AN7
-
-
-
-
-
-
8
MAR. 2005 Ver 0.2