Texas Instruments TMS320C3x User Manual
Page 330
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16-Bit-Wide Memory Interface
10-27
TMS320C32 Enhanced External Memory Interface
Table 10–10. Strobe-Byte Enable Behavior for 16-Bit-Wide Memory with 8-Bit Data-Type Size
БББББББББ
БББББББББ
Internal A
0
БББББББББББББББ
БББББББББББББББ
Active Strobe Byte Enable
БББББББББ
БББББББББ
0
БББББББББББББББ
БББББББББББББББ
STRBx_B0
БББББББББ
Б
БББББББ
Б
БББББББББ
1
БББББББББББББББ
Б
БББББББББББББ
Б
БББББББББББББББ
STRBx_B1
Figure 10–15. Functional Diagram for 8-Bit Data-Type Size and 16-Bit External-Memory Width
A22
A21
A20
A19
.
.
.
A1
A0
CS
I/O(7-0)
A22
A21
A20
A19
.
.
.
A1
A0
CS
I/O(7-0)
’C32
A
23
A
22
A
21
A
20
A
19
A
18
.
.
.
A
0
STRBx_B3/A
–1
STRBx_B1
STRBx_B0
D(15-8)
D(7-0)
A
23
A
22
A
21
A
20
.
.
.
A
2
A
1
A
0
1
0
Memory interface
’C32’
s core address bus
For example, reading or writing to memory locations 4000h to 4004h involves
the pins listed in Table 10–11.
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