MB90230 Series
6
(Continued)
Pin no.
Pin name
Circuit
type
Function
16
P40
E
General-purpose I/O port
This port is enabled in the single-chip mode or when the upper
address control register setting is “port.”
A16
Output pin for external address A16
This pin is enabled in the external-bus enabled mode with the upper
address control register set to “address.”
PWM0
This pin serves as the output pin for 8-bit PWM0
The pin is enabled for output by the control status register.
17
P41
E
General-purpose I/O port
This port is enabled in the single-chip mode or when the upper
address control register setting is “port.”
A17
Output pin for external address A17
This pin is enabled in the external-bus enabled mode with the upper
address control register set to “address.”
PWM1
This pin serves as the output pin for 8-bit PWM1.
The pin is enabled for output by the control status register.
18
P42
E
General-purpose I/O port
This port is enabled in the single-chip mode or when the upper
address control register setting is “port.”
A18
Output pin for external address A18
This pin is enabled in the external-bus enabled mode with the upper
address control register set to “address.”
PWM2
This pin serves as the output pin for 8-bit PWM2.
This pin is enabled for output by the control status register.
19
P43
E
General-purpose I/O port
This port is enabled in the single-chip mode or when the upper
address control register setting is “port.”
A19
Output pin for external address A19
This pin is enabled in the external-bus enabled mode with the upper
address control register set to “address.”
PWM3
This pin serves as the output pin for 8-bit PWM3.
This pin is enabled for output by the control status register.
20
P44
E
General-purpose I/O port
This port is enabled in the single-chip mode or when the upper
address control register setting is “port.”
A20
Output pin for external address A20
This pin is enabled in the external-bus enabled mode with the upper
address control register set to “address.”
PWM4
This pin serves as the output pin for 8-bit PWM4.
The pin is enabled for output by the control status register.
21
VCC
—
Power supply pin