Computer Hardware User's Guide
32-Bit-Wide Memory Interface
10-21
TMS320C32 Enhanced External Memory Interface
Table 10–5. Strobe Byte-Enable for 32-Bit-Wide Memory With 8-Bit Data-Type Size
Internal
A
1
Internal
A
0
Active Strobe
Byte Enable
0 0 STRBx_B0
0 1 STRBx_B1
1 0 STRBx_B2
1 1 STRBx_B3
Figure 10–11. Functional Diagram for 8-Bit Data-Type Size and 32-Bit External-Memory
Width
A
21
A
20
A
19
A
18
A
0
CS
I/O(7–0)
’C32
A
23
A
22
A
21
A
20
A
19
A
18
.
.
.
A
0
D(31–24)
D(23–16)
D(15–8)
D(7–0)
A
21
A
20
A
19
A
18
A
0
CS
I/O(7–0)
A
21
A
20
A
19
A
18
A
0
CS
I/O(7–0)
A
21
A
20
A
19
A
18
A
0
CS
I/O(7–0)
A
23
A
22
A
21
A
20
.
.
.
A
2
A
1
A
0
11
10
01
00
Memory interface
STRBx_B3
STRBx_B2
STRBx_B1
STRBx_B0
.
.
.
.
.
.
.
.
.
.
.
.