65
Pin Functions
Chapter 2
Preliminary User’s Manual U17566EE1V2UM00
2.4.2
Alphabetic pin function list
Table 2-20
provides a list of all pin function names in alphabetic order.
The right columns show also the port, the concerned signal is shared with:
• “Pnm”:
signal is shared with port Pnm
• “no ports”:
signal has no shared port function
• “–”:
signal is not available
Table 2-20
Alphabetic pin functions list (1/5)
Pin name
I/O
Pin function
Port
‘3420, ‘3421
‘3422, ‘3423
‘3424, ‘3425
‘3426
‘3427
A0 to A23
O
External memory interface
address lines 0 to 23
–
no ports
ANI0 to ANI11
I
A/D Converter input 0 to 11
P70 to P711
ANI12 to ANI15
I
A/D Converter input 12 to 15
–
P712 to P715
AVDD
–
ADC supply voltage
no ports
AVREF
–
ADC reference voltage input
no ports
AVSS
–
ADC ground
no ports
BE0, BE1
O
External memory interface byte
enable signals 0, 1
–
no ports
BE2
O
External memory interface byte
enable signals 2
–
P141
BE3
O
External memory interface byte
enable signals 3
–
P142
BCLK
O
External memory interface clock
signal
–
P140
BVDD50, BVDD51
–
I/O buffer supply voltage
no ports
BVSS50, BVSS51
–
I/O buffer supply ground
no ports
COM0 to COM3
O
LCD common lines 0 to 3
P94 to P97
–
CRXD0
I
CAN0 receive data
P46
CRXD1
I
CAN1 receive data
P56
CS0, CS1, CS3,
CS4
O
External memory interface chip
select signals
–
no ports
CTXD0
O
CAN0 transmit data
P47
CTXD1
O
CAN1 transmit data
P57
D0 to D15
I/O
External memory interface data
lines 0 to 15
–
no ports
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