PXR40RM Datasheet, PDF (1309/1434 Pages) Freescale Semiconductor, Inc – PXR40 Microcontroller

External Bus Interface (EBI)
Since all transfers are aligned on the external bus, normal timing diagrams and protocol apply.
Table 30-21. Misalignment Cases Supported by a 64 bit AMBA EBI (external bus)
No.¹ PS²
Program Size
and byte offset
D_ADD[29:31]³
0
1
Half @0x1,0x9
1
0
2
Half @0x3,0xB
1
0
3
Half @0x5,0xD
1
4
0
-
Half @0x7,0xF
4
(2 AHB transfers)
1
-
0
5
Word @0x1,0x9
1
0
6
Word @0x2,0xA
1
0
7
Word @0x3,0xB
1
8
0
-
Word @0x5,0xD
8
(2 AHB transfers)
1
-
9
0
-
Word @0x6,0xE
9
(2 AHB transfers)
1
-
000
000
010
000
100
010
100
100
100
110
111⁵
000
110
000
000
100
000
010
100
000
100
010
100
000
100
010
100
110
100
000
100
110
000
110⁶
000
110⁶
000
D_WE[0:3]⁴
1001
1011
0111
1110
0111
1011
0111
1001
1011
0111
1110
0111
1011
0111
1000
0111
1011
0011
0111
1100
0011
0011
0011
1110
0001
1011
0011
0111
1000
0111
1011
0011
0111
1100
0011
0011
0011
Freescale Semiconductor
PXR40 Microcontroller Reference Manual, Rev. 1
30-47