36
Chapter 2
Pin Functions
Preliminary User’s Manual U15839EE1V0UM00
(2)
Non-port pins
Table 2-2:
Non-Port Pins (1/3)
Pin Name
I/O
Function
Alternate
V
DD50
-V
DD52
–
Power supply 5 V
-
V
SS50
-V
SS52
–
GND potential for 5 V power supply
-
V
DD30
-V
DD36
Note 1
–
Power supply 3.3 V
-
V
SS30
-V
SS36
–
GND potential for 3.3 V power supply
-
CV
DD
Note 2
–
Connection for 3.3 V clock oscillator power supply
-
CV
SS
GND potential for 3.3 V clock oscillator power supply
-
X1
input
System clock oscillator connection pins.
-
X2
output
-
XT1
input
Sub clock oscillator connection pins.
-
XT2
output
-
MODE0-MODE2
input
Selects operating mode
-
RESET
input
System reset input
-
RESOUT
output
System reset output (incl. Watchdog timer reset)
-
AV
DD
–
Power supply for A/D converter
-
AV
SS
–
Ground potential for A/D converter
-
AV
REF
input
reference voltage input for A/D converter
-
NMI
input
non maskable interrupt input
P60
ANI0-ANI7
input
analog input to A/D converter
P77 to P70
ANI8-ANI11
input
analog input to A/D converter
P80 to P83
SI00
input
serial receive data input to CSI00-CSI02
P20
SI01
P23
SI02
P65
SO00
output
serial transmit data output from CSI00-CSI02
P21
SO01
P24
SO02
P66
SCK00
I/O
serial clock I/O from/to CSI00-CSI02
P22
SCK01
P25
SCK02
P67
RXD50
input
serial receive data input to UART50-UART51
P26
RXD51
P16
TXD50
output
serial transmit data output from UART50-UART51
P27
TXD51
P17
Notes: 1. All V
DD3
pins have to be connected to each other. On each pin of V
DD3
, a capacitor containing a very
low serial impedance has to be attached as tight as possible to the pin.
2. On CV
DD
, a capacitor containing a very low serial impedance has to be attached as tight as possible
to the pin. V
DD3
and CV
V
must be connected to each other.
3. CAN module 3 and CAN module 4 are available in the derivatives µPD703129 (A) and
µPD703129 (A1) only.
Содержание mPD703128
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