MB90M405 Series
7
(Continued)
Pin No.
Pin Name
Circuit
Type
State/
Function at
Reset
Description
QFP-100
58
P86
E
Port input
(Hi-z)
I/O port
SC1
Serial clock I/O pin for serial I/O ch 1
Effective when serial clock output for serial I/O ch 1 en-
abled
59
P87
I/O port
SO1
Serial data output pin for serial I/O ch 1
Effective when serial data output for serial I/O ch 1 en-
abled
60
P90
G
I/O port (however, Nch open drain)
SDA
I
2
C interface data I/O pin. This function is effective when
I
2
C interface operation is enabled. While the I
2
C inter-
face is operating, set the port to input (DDR9 : bit 8
=
0) .
Serial data output pin for serial I/O ch 3
Effective when serial data output for serial I/O ch 3 en-
abled
SO3
61
P91
G
I/O port (however, Nch open drain)
SCL
I
2
C interface clock I/O pin. This function is effective
when I
2
C interface operation is enabled. While the I
2
C
interface is operating, set the port to input (DDR9 : bit 9
=
0) .
Serial clock I/O pin for serial I/O ch 3
Effective when serial clock output for serial I/O ch 3 en-
abled
SC3
64
PA0
F
Analog input
I/O port
AN0
Ch 0 of A/D converter analog input pin
Effective when analog input setting enabled (set with
ADER)
TMCK
Time clock output pin. Effective when output enabled.
Note that this is not effective when analog input enabled
via ADER.
65 to 74
PA1 to PB2
I/O port
AN1 to AN10
Ch 1 to ch 10 of A/D converter analog input pin
Effective when analog input setting enabled (set with
ADER)
75
PB3
I/O port
AN11
Ch 11 of A/D converter analog input pin
Effective when analog input setting enabled (set with
ADER)
SI2
Serial data input pin for serial I/O ch 2
During input operation by serial I/O ch 2, pin is used
continuously, so do not use as a different pin