AT90CAN64_14 Datasheet, PDF (89/428 Pages) ATMEL Corporation – High-performance, Low-power AVR 8-bit Microcontroller

AT90CAN32/64/128
Table 9-21 and Table 9-22 relates the alternate functions of Port G to the overriding signals
shown in Figure 9-5 on page 72.
Table 9-22. Overriding Signals for Alternate Function in PG4
Signal Name
-
-
-
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
PTOE
DIEOE
DIEOV
DI
AIO
PG4/TOSC1
AS2
0
AS2
0
0
0
0
AS2
EXCLK
–
T/C2 OSC INPUT
Table 9-23. Overriding Signals for Alternate Functions in PG3:0
Signal Name
PG3/TOSC2
PG2/ALE
PG1/RD
PUOE
AS2 • EXCLK
SRE
SRE
PUOV
0
0
0
DDOE
AS2 • EXCLK
SRE
SRE
DDOV
0
1
1
PVOE
0
SRE
SRE
PVOV
0
ALE
RD
PTOE
0
0
0
DIEOE
AS2
0
0
DIEOV
0
0
0
DI
–
–
–
AIO
T/C2 OSC OUTPUT
–
–
PG0/WR
SRE
0
SRE
1
SRE
WR
0
0
0
–
–
9.4 Register Description for I/O-Ports
9.4.1
Port A Data Register – PORTA
Bit
Read/Write
Initial Value
7
PORTA7
R/W
0
6
PORTA6
R/W
0
5
PORTA5
R/W
0
4
PORTA4
R/W
0
3
PORTA3
R/W
0
2
PORTA2
R/W
0
1
PORTA1
R/W
0
0
PORTA0
R/W
0
PORTA
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7679H–CAN–08/08