• A14 – Port C, Bit 6
A14, External memory interface address 14.
• A13 – Port C, Bit 5
A13, External memory interface address 13.
• A12 – Port C, Bit 4
A12, External memory interface address 12.
• A11 – Port C, Bit 3
A11, External memory interface address 11.
• A10 – Port C, Bit 2
A10, External memory interface address 10.
• A9 – Port C, Bit 1
A9, External memory interface address 9.
• A8 – Port C, Bit 0
A8, External memory interface address 8.
Table 36 and Table 37 relate the alternate functions of Port C to the overriding signals
shown in Figure 34 on page 67.
Table 36. Overriding Signals for Alternate Functions in PC7..PC4
Signal Name
PUOE
PC7/A15
PC6/A14
PC5/A13
PC4/A12
SRE • (XMM<1)
SRE • (XMM<2) SRE • (XMM<3) SRE • (XMM<4)
PUOV
0
0
0
0
DDOE
CKOUT(1)
+
SRE • (XMM<2) SRE • (XMM<3) SRE • (XMM<4)
(SRE • (XMM<1))
DDOV
PVOE
1
1
1
1
CKOUT(1)
+
SRE • (XMM<2) SRE • (XMM<3) SRE • (XMM<4)
(SRE • (XMM<1))
PVOV
(A15 • CKOUT(1)) +
(CLKO • CKOUT(1))
A14
A13
A12
PTOE
DIEOE
DIEOV
DI
0
0
0
–
–
0
0
0
–
–
0
0
0
–
–
0
0
0
–
–
AIO
Note:
1. CKOUT is one if the CKOUT Fuse is programmed
74
AT90CAN128
4250E–CAN–12/04
ATMEL [ ATMEL ]
