
MB91F158 Series
6
DS07-16316-2E
(Continued)
Pin No.
Pin name
Circuit
type
Function
64
65
66
67
INT4/PC4/CS0
INT5/PC5/CS1
INT6/PC6/CS2
INT7/PC7/CS3
H
These pins also serve as the chip select output and external inter-
rupt request input 4 to 7.
When the chip select output is not allowed, these pins are available
as external interrupt requests or ports.
Since this input is used more or less continuously when the corre-
sponding external interrupt is allowed, output by the port needs to
be stopped except when it is performed intentionally.
Since this port is also allowed to input in standby mode, the port can
be used to reset the standby state.
These pins are available as ports when external interrupt request
input and chip select output are not in use.
68
69
70
71
72
73
PD0/AIN0/INT8/TRG0
PD1/BIN0/INT9/TRG1
PD2/AIN1/INT10/TRG2
PD3/BIN1/INT11/TRG3
PD4/ZIN0/INT12
PD5/ZIN1/INT13
H
External interrupt request input 8 to 13
Since this input is used more or less continuously when the corre-
sponding external interrupt is allowed, output by the port needs to
be stopped except when it is performed intentionally.
[AIN, BIN] Up/down timer input.
[TRG] PPG external trigger input.
Since this input is used more or less continuously while input is
allowed, output by the port needs to be stopped except when it is
performed intentionally.
These pins are available as ports when the external interrupt
request input, up timer counter input, and PPG external trigger input
are not in use.
74
PD6/INT14
H
External interrupt request input 14
Since this input is used more or less continuously when the corre-
sponding external interrupt is allowed, output by the port needs to
be stopped except when it is performed intentionally.
75
PD7/ATG/INT15
H
External interrupt request input 15
Since this input is used more or less continuously when the corre-
sponding external interrupt is allowed, output by the port needs to
be stopped except when it is performed intentionally.
[ATG] A/D converter external trigger input.
Since this input is used more or less continuously when selected as
an A/D activation factor, output by the port needs to be stopped
except when it is performed intentionally.
This pin is available as a port when it is not in use as the external
interrupt request input or DMA external transfer end output.
78
79
80
81
PE0
PE1
PE2
PE3
F
General-purpose I/O ports
82
83
84
85
PE4/OC4
PE5/OC5
PE6/OC6
PE7/OC7
F
Output compare output
These pins are available as ports when output compare output is
not allowed.