MB91270 Series
Pin No. Pin name
Function I/O circuit
name
type*
Function
PE5
General-purpose I/O port
⎯
PE5
A05
A
External address bus output pin bit 5
This function is enabled when the external bus is enabled.
INT29
External interrupt request 29 input pin
PE6
General-purpose I/O port
⎯
PE6
A06
A
External address bus output pin bit 6
This function is enabled when the external bus is enabled.
INT30
External interrupt request 30 input pin
PE7
General-purpose I/O port
⎯
PE7
A07
A
External address bus output pin bit 7
This function is enabled when the external bus is enabled.
INT31
External interrupt request 31 input pin
Port F (MB91V280 only)
PF0
General-purpose I/O port
⎯
PF0
A08
A
External address bus output pin bit 8
This function is enabled when the external bus is enabled.
INT32
External interrupt request 32 input pin
PF1
General-purpose I/O port
⎯
PF1
A09
A
External address bus output pin bit 9
This function is enabled when the external bus is enabled.
INT33
External interrupt request 33 input pin
PF2
General-purpose I/O port
⎯
PF2
A10
A
External address bus output pin bit 10
This function is enabled when the external bus is enabled.
INT34
External interrupt request 34 input pin
PF3
General-purpose I/O port
⎯
PF3
A11
A
External address bus output pin bit 11
This function is enabled when the external bus is enabled.
INT35
External interrupt request 35 input pin
PF4
General-purpose I/O port
⎯
PF4
A12
A
External address bus output pin bit 12
This function is enabled when the external bus is enabled.
INT36
External interrupt request 36 input pin
PF5
General-purpose I/O port
⎯
PF5
A13
A
External address bus output pin bit 13
This function is enabled when the external bus is enabled.
INT37
External interrupt request 37 input pin
* : Refer to “■ I/O CIRCUIT TYPE” for the I/O circuit type.
(Continued)
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