37
Pin Functions
Chapter 2
Preliminary User’s Manual U17566EE1V2UM00
Port group overview
Table 2-1
gives an overview of the port groups. For each port group it shows
the supported functions in port mode and in alternative mode. Any port group
can operate in 8-bit or 1-bit units. Port group 7 can additionally operate in
16-bit units.
Table 2-1
Functions of each port group (1/2)
Port
group
name
Function
Port mode
Alternative mode
0
8-bit input/output
•
External interrupt 0 to 6
•
Non maskable interrupt
•
N-Wire debug interface reset
•
Output state of internal Voltage Comparators 0
1
2-bit input/output
•
I
2
C0 data/clock line
2
8-bit input/output
•
Timer TMG0 to TMG1 channels
•
I
2
C1 data/clock line
•
LCD controller segment signal output
(µPD70(F)3420, µPD70(F)3421, µPD70(F)3422,
µPD70F3423 only)
3
8-bit input/output
•
UARTA0 transmit/receive data,
•
UARTA1 transmit/receive data
•
I
2
C1 data/clock line
•
LCD controller segment signal output
(µPD70(F)3420, µPD70(F)3421, µPD70(F)3422,
µPD70F3423 only)
•
Timer TMG2 channels
•
Timer TMP0 to TMP3 channels
4
8-bit input/output
•
Clocked Serial Interface CSIB0 data/clock line
•
Clocked Serial Interface CSIB1 data/clock line
•
LCD controller segment signal output
(µPD70(F)3420, µPD70(F)3421, µPD70(F)3422,
µPD70F3423 only)
•
CAN0 transmit/receive data
5
8-bit input/output
•
External interrupt 7 (µPD70F3424, µPD70F3425,
µPD70F3426, µPD70F3427 only)
•
Sound Generator outputs
•
Frequency output
•
N-Wire interface signals
•
CAN1 transmit/receive data
•
UARTA1 transmit/receive data
6
8-bit input/output
•
Timer TMP0 to TMP3 channels
•
Timer TMG2 channels
•
LCD controller segment signal output
(µPD70(F)3420, µPD70(F)3421, µPD70(F)3422,
µPD70F3423 only)
•
I
2
C0 data/clock line
7
16-bit input
•
A/D Converter input
-
µPD70F3424, µPD70F3425,
µPD70F3426, µPD70F3427: 16 channels
-
µPD70(F)3420, µPD70(F)3421,
µPD70(F)3422, µPD70F3423: 12 channels
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