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MB91350A Series
5
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PIN DESCRIPTION
(Continued)
Pin no.
Pin name
Circuit
type
Description
1 to 8
D16 to D23
C
External data bus bit 16 to bit 23. Enabled in external bus mode.
P20 to P27
Available as a port in external bus 8-bit mode.
9 to 16
D24 to D31
C
external data bus bit 24 to bit 31. Enabled in external bus mode.
P30 to P37
Usable as port at single chip mode.
19 to 26
A00 to A07
C
Bits 0 to 7 of external address bus. Enabled in external bus mode.
P40 to P47
Usable as port at single chip mode.
27 to 34
A08 to A15
C
Bits 8 to 15 of external address bus. Enabled in external bus mode.
P50 to P57
Usable as port at single chip mode.
37 to 41
A16 to A20
C
Bits 16 to 20 of external address bus. Enabled in external bus mode.
P60 to P64
Available as a port either in single chip mode or with no external address bus in
use.
42 to 44
A21 to A23
C
Bits 21 to 23 of external address bus. Enabled in external bus mode.
P65 to P67
Available as a port either in single chip mode or with no external address bus in
use.
47 to 48
DA0, DA1
G
D/A converter output pin.
49
DA2
D/A converter output pin.
50 to 57 AN0 to AN7
Analog input pin.
58 to 61
AN8 to AN11
G
Analog input pin.
67 to 70
TOT0 to TOT3
D
Reload timer output port. This function is enabled when timer output is enabled.
PP0 to PP3
General purpose input/output port. This function is enabled when the timer out-
put function is disabled.
71
OC0
D
Output compare pin.
PO0
General purpose I/O. This function is available as a port when the output com-
pare output is not in use.
72
OC1
D
Output compare pin.
PO1
General purpose I/O. This function is available as a port when the output com-
pare output is not in use.
73
OC2
D
Output compare pin.
PO2
General purpose I/O. This function is available as a port when the output com-
pare output is not in use.
74 to 78
OC3 to OC7
D
Output compare pin.
PO3 to PO7
General purpose I/O. This function is available as a port when the output com-
pare output is not in use.
81
PPG0
D
PPG timer output pin.
PN0
General purpose I/O. This function is available as a port when the PPG timer out-
put is not in use.