Specifications
External Memory Expansion Port (Port A)
MOTOROLA
DSP56367
3-19
113
RD deassertion time
0.75
×
T
C
−
4.0
[1
≤
WS
≤
3]
2.2
—
ns
1.75
×
T
C
−
4.0
[4
≤
WS
≤
7]
10.6
—
ns
2.75
×
T
C
−
4.0
[WS
≥
8]
18.9
—
ns
114
WR deassertion time
0.5
×
T
C
−
4.0
[WS = 1]
0.2
—
ns
T
C
−
2.0
[2
≤
WS
≤
3]
6.3
—
ns
2.5
×
T
C
−
4.0
[4
≤
WS
≤
7]
16.8
—
ns
3.5
×
T
C
−
4.0
[WS
≥
8]
25.2
—
ns
115
Address valid to RD assertion
0.5
×
T
C
−
4.0
0.2
—
ns
116
RD assertion pulse width
(WS + 0.25)
×
T
C
−
4.0
6.4
—
ns
117
RD deassertion to address not valid
0.25
×
T
C
− 2
.0
[1
≤
WS
≤
3]
0.1
—
ns
1.25
×
T
C
−
2.0
[4
≤
WS
≤
7]
8.4
—
ns
2.25
×
T
C
−
2.0
[WS
≥
8]
16.7
—
ns
118
TA setup before RD or WR deassertion
4
0.25
×
T
C
+ 2.0
4.1
—
ns
119
TA hold after RD or WR deassertion
0.0
—
ns
Note:
1.
WS is the number of wait states specified in the BCR.
2.
Timings 100, 107 are guaranteed by design, not tested.
3.
All timings for 100 MHz are measured from 0.5
·
Vcc to .05
·
Vcc
4.
In the case of TA negation: timing 118 is relative to the deassertion edge of RD or WR were
TA to remain active
Table 3-8 SRAM Read and Write Accesses (Continued)
No.
Characteristics
Symbol
Expression
1
Min
Max
Uni
t
Summary of Contents for DSP56367
Page 16: ...xvi MOTOROLA CONTENTS Paragraph Number Title Page Number ...
Page 22: ...xxii MOTOROLA List of Figures Figure Number Title Page Number ...
Page 26: ...xxvi MOTOROLA List of Tables Table Number Title Page Number ...
Page 148: ...4 6 DSP56367 MOTOROLA Design Considerations PLL Performance Issues ...
Page 248: ...9 30 DSP56367 MOTOROLA Serial Host Interface SHI Programming Considerations ...
Page 306: ...10 58 DSP56367 MOTOROLA Enhanced Serial Audio Interface ESAI ESAI Initialization Examples ...
Page 389: ...Bootstrap ROM Contents MOTOROLA DSP56367 A 15 end ...
Page 390: ...A 16 DSP56367 MOTOROLA Bootstrap ROM Contents ...
Page 432: ...C 8 DSP56367 MOTOROLA JTAG BSDL ...
Page 484: ...D 52 DSP56367 MOTOROLA Programmer s Reference ...
Page 490: ...E 6 DSP56367 MOTOROLA Power Consumption Benchmark ...
Page 516: ...F 26 DSP56367 MOTOROLA IBIS Model ...
Page 522: ...Index 6 MOTOROLA Index ...
Page 523: ......