
MB89530A Series
DS07-12547-7E
11
■ PIN DESCRIPTIONS
(Continued)
Pin no.
Pin name
I/O
circuit
type*7
Function
SH-DIP*1
MDIP*2
QFP*3
MQFP*4
LQFP*5
BCC*6
30
23
22
X0
A
Connecting pins to crystal oscillator circuit or other
oscillator circuit. The X0 pin can connect to an external
clock. In that case, X1 is left open.
31
24
23
X1
28
21
20
MOD0
B
Input pins for memory access mode setting.
Connect directly to Vss.
29
22
21
MOD1
27
20
19
RST
C
Reset I/O pin. This pin has pull-up resistance with
CMOS I/O or hysteresis input. At an internal reset
request, an ’L’ signal is output. An ’L’ level input
initializes the internal circuits.
56 to 49
49 to 42
48 to 41
P00 to P07
D
General purpose I/O ports.
48 to 41
41 to 34
40 to 33
P10 to P17
D
General purpose I/O ports.
40
33
32
P20/PWCK
E
General purpose I/O port.Resource I/O pin (hysteresis
input).Hysteresis input. This pin also functions as a
PWC input.
39
32
31
P21/
PPG01
D
General purpose I/O port.This pin also functions as the
PPG01 output.
38
31
30
P22/
PPG02
D
General purpose I/O port.This pin also functions as the
PPG02 output.
37
30
29
P23
D
General purpose I/O port.
36
29
28
P24
D
General purpose I/O port.
35
28
27
P25
D
General purpose I/O port.
34
27
26
P26
D
General purpose I/O port.
33
26
25
P27
D
General purpose I/O port.
58
51
50
P30/
PPG03/
MCO
D
General purpose I/O port.This pin also functions as the
PPG03 output.
59
52
51
P31/SCK1
(UCK1) /
LMCO
E
General purpose I/O port.Resource I/O pin (hysteresis
input).This pin also functions as the UART/SIO clock
input/output pin.
60
53
52
P32/SO1
(UO1)
D
General purpose I/O port.This pin also functions as the
UART/SIO data output pin.
61
54
53
P33/SI1
(UI1)
E
General purpose I/O port.Resource input/output pin
(hysteresis input).This pin also functions as the UART/
SIO serial data input pin.
62
55
54
P34/PTO2
D
General purpose I/O port.This pin also functions as the
PWM timer 2 output pin.
63
56
55
P35/PWC
E
General purpose I/O port.Resource I/O pin (hysteresis
input).This pin also functions as a PWC input.