MB90650A Series
9
(Continued)
Pin no.
Pin name
Circuit
type
Function
LQFP*1
QFP*2
18
20
P42
H
(STBC)
General-purpose I/O port
When UART0 is operating in external shift clock mode, the
data at the pin is used as the clock input (SCK0).
Also, functions as the SCK0 pin if the SOE bit in the UMC
register is “1”.
Can be set as an open-drain output port (OD42 = “1”) by the
open-drain control register (ODR4).
The setting does not apply for ports set as inputs (D42 = “0”:
invalid at the input setting).
SCK0
Functions as the UART0 serial clock I/O pin (SCK0).
19
21
P43
H
(STBC)
General-purpose I/O port
When I/O extended serial is operating, the data at the pin is
used as the serial input (SIN1).
Can be set as an open-drain output port (OD43 = “1”) by the
open-drain control register (ODR4).
The setting does not apply for ports set as inputs (D43 = “0”:
invalid at the input setting).
SIN1
Functions as the serial input for I/O extended serial data.
20
22
P44
G
(STBC)
General-purpose I/O port
Functions as the SOT1 pin if the SOE bit in the UMC register is
“1”.
Can be set as an open-drain output port (OD44 = “1”) by the
open-drain control register (ODR4).
The setting does not apply for ports set as inputs (D44 = “0”:
invalid at the input setting).
SOT1
Functions as the output pin (SOT1) for I/O extended serial
data.
22
24
P45
H
(STBC)
General-purpose I/O port
When I/O extended serial is operating in external shift clock
mode, the data at the pin is used as the clock input (SCK1).
Also, functions as the SCK1 pin if the SOE bit in the UMC
register is “1”.
Can be set as an open-drain output port (OD45 = “1”) by the
open-drain control register (ODR4).
The setting does not apply for ports set as inputs (D45 = “0”:
invalid at the input setting).
SCK1
Functions as the I/O extended serial clock I/O pin (SCK1).
23
25
P46
G
(STBC)
General-purpose I/O port
Can be set as an open-drain output port (OD46 = “1”) by the
open-drain control register (ODR4).
The setting does not apply for ports set as inputs (D46 = “0”:
invalid at the input setting).
ADTG
Functions as the external trigger input pin for the A/D
converter.
24
26
P47
K
(NMOS/H)
(STBC)
Open-drain type general-purpose I/O port