Texas Instruments TMS320C3x User Manual
Page 324
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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
ББББ
Б
ББ
Б
ББББ
Internal
A
1
БББББ
Б
БББ
Б
БББББ
Internal
A
0
БББББ
Б
БББ
Б
БББББ
Active Strobe
Byte Enable
ББББ
ББББ
0
БББББ
БББББ
0
БББББ
БББББ
STRBx_B0
ББББ
Б
ББ
Б
ББББ
0
БББББ
Б
БББ
Б
БББББ
1
БББББ
Б
БББ
Б
БББББ
STRBx_B1
ББББ
ББББ
1
БББББ
БББББ
0
БББББ
БББББ
STRBx_B2
ББББ
ББББ
1
БББББ
БББББ
1
БББББ
БББББ
STRBx_B3
Figure 10–11.
Functional Diagram for 8-Bit Data-Type Size and 32-Bit External-Memory
Width
A21
A20
A19
A18
A0
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)
A21
A20
A19
A18
A0
CS
I/O(7–0)
A21
A20
A19
A18
A0
CS
I/O(7–0)
A21
A20
A19
A18
A0
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
ОООО
STRBx_B3
ОООО
ОООО
STRBx_B2
ОООО
STRBx_B1
ОООО
STRBx_B0
.
.
.
.
.
.
.
.
.
.
.
.
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