Atmel AVR AT90CAN32 User Manual

89
7679H–CAN–08/08
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.
9.4 Register Description for I/O-Ports
9.4.1 Port A Data Register – PORTA
Table 9-22. Overriding Signals for Alternate Function in PG4
Signal Name---PG4/TOSC1
PUOE AS2
PUOV 0
DDOE AS2
DDOV 0
PVOE 0
PVOV 0
PTOE 0
DIEOE AS2
DIEOV EXCLK
DI –
AIO T/C2 OSC INPUT
Table 9-23. Overriding Signals for Alternate Functions in PG3:0
Signal Name PG3/TOSC2 PG2/ALE PG1/RD PG0/WR
PUOE AS2 • EXCLK
SRE SRE SRE
PUOV0 000
DDOE AS2 • EXCLK SRE SRE SRE
DDOV 0 1 1 1
PVOE 0 SRE SRE SRE
PVOV 0 ALE RD WR
PTOE0 000
DIEOE AS2 0 0 0
DIEOV0 000
DI– –––
AIO T/C2 OSC OUTPUT – – –
Bit 76543210
PORTA7 PORTA6 PORTA5 PORTA4 PORTA3 PORTA2 PORTA1 PORTA0 PORTA
Read/Write R/W R/W R/W R/W R/W R/W R/W R/W
Initial Value00000000

Atmel AVR AT90CAN32 Specifications

General

Brand	Atmel
Model	AVR AT90CAN32
Category	Microcontrollers
Language	English