AT90CAN128-16AE ATMEL Corporation, AT90CAN128-16AE Datasheet - Page 71
AT90CAN128-16AE
Manufacturer Part Number
AT90CAN128-16AE
Description
8-bit Avr Microcontroller With 128K Bytes of Isp Flash And CAN Controller.flash (Kbytes) 128 Vcc (V) 2.7-5.5 EEPROM (Kbytes) 4 SRAM (bytes) 4K CAN (mess. Obj.) 15
Manufacturer
ATMEL Corporation
Datasheet
1.AT90CAN128-16AE.pdf
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4250C–CAN–03/04
• AD1 – Port A, Bit 1
AD1, External memory interface address 1 and Data 1.
• AD0 – Port A, Bit 0
AD0, External memory interface address 0 and Data 0.
Table 30 and Table 31 relates the alternate functions of Port A to the overriding signals
shown in Figure 33 on page 68.
Table 30. Overriding Signals for Alternate Functions in PA7..PA4
Note:
Signal Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
PTOE
DIEOE
DIEOV
DI
AIO
1. ADA is short for ADdress Active and represents the time when address is output. See
“External Memory Interface” on page 25 for details.
PA7/AD7
SRE •
(ADA + WR)
0
SRE
WR + ADA
SRE
A7 • ADA + D7
OUTPUT • WR
0
0
0
D7 INPUT
–
PA6/AD6
SRE •
(ADA + WR)
0
SRE
WR + ADA
SRE
A6 • ADA + D6
OUTPUT • WR
0
0
0
D6 INPUT
–
PA5/AD5
SRE •
(ADA + WR)
0
SRE
WR + ADA
SRE
A5 • ADA + D5
OUTPUT • WR
0
0
0
D5 INPUT
–
AT90CAN128
PA4/AD4
SRE •
(ADA + WR)
0
SRE
WR + ADA
SRE
A4 • ADA + D4
OUTPUT • WR
0
0
0
D4 INPUT
–
71
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