MB89580B/580BW series
6
s PIN DESCRIPTION
(Continued)
Pin No.
Pin name
Circuit
type
Function
1
P44/UCK/D4/
DO4
E
General-purpose CMOS I/O pin
UART/S10 clock I/O
This pin also serves as a parallel interface/external FIFO data output pin.
2
P45/UO/D5/
DO5
B
General-purpose CMOS I/O pin
UART/S10 serial data output
This pin also serves as a parallel interface/external FIFO data output pin.
3
P46/UI/
PWM1/D6/
DO6
E
General-purpose CMOS I/O pin
UART/S10 serial data input
PWM timer
This pin also serves as a parallel interface/external FIFO data output pin.
4
P47/PWM2/
D7/DO7
B
General-purpose CMOS I/O pin
PWM timer
This pin also serves as a parallel interface/external FIFO data output pin.
5
P30/INT0/
CLK
E
General-purpose CMOS I/O pin
Clock output pin
This pin also serves as an external interrupt input pin.
The external interrupt input is a hysteresis input. (Level detection)
6
P31/INT1
E
General-purpose CMOS I/O pin
This pin also serves as an external interrupt input pin.
The external interrupt input is a hysteresis input. (Level detection)
7
P32/INT2
E
General-purpose CMOS I/O pin
This pin also serves as an external interrupt input pin.
The external interrupt input is a hysteresis input. (Level detection)
8
P33/INT3
E
General-purpose CMOS I/O pin
This pin also serves as an external interrupt input pin.
The external interrupt input is a hysteresis input. (Level detection)
9
P34/INT4
E
General-purpose CMOS I/O pin
This pin also serves as an external interrupt input pin.
The external interrupt input is a hysteresis input. (Level detection)
10
P35/INT5
E
General-purpose CMOS I/O pin
This pin also serves as an external interrupt input pin.
The external interrupt input is a hysteresis input. (Level detection)
11
P36/INT6/
WEX
E
General-purpose CMOS I/O pin
This pin also serves as an external interrupt input pin.
The external interrupt input is a hysteresis input. (Level detection)
This pin also serves as the parallel interface write strobe input pin.
12
P37/INT7/
RDX
E
General-purpose CMOS I/O pin
This pin also serves as an external interrupt input pin.
The external interrupt input is a hysteresis input. (Level detection)
This pin also serves as the parallel interface read strobe input pin.
13
P50/OBF/
IBFX/W
B
General-purpose CMOS I/O pin
Interrupt output to the parallel interface host.
This pin also serves the OUT FIFO data strobe pin.