Specifications
External Memory Expansion Port (Port A)
MOTOROLA
DSP56367
3-23
Table 3-9 DRAM Page Mode Timings, One Wait State (Low-Power Apps)
No.
Characteristics
Symbol
Expression
20 MHz
6
30 MHz
6
Unit
Min Max
Min Max
131
Page mode cycle time for two
consecutive accesses of the same
direction
t
PC
2
×
T
C
100.0
—
66.7
—
ns
Page mode cycle time for mixed (read
and write) accesses
1.25
×
T
C
62.5
—
41.7
—
132
CAS assertion to data valid (read)
t
CAC
T
C
−
7.5
—
42.5
—
25.8
ns
133
Column address valid to data valid
(read)
t
AA
1.5
×
T
C
−
7.5
—
67.5
—
42.5
ns
134
CAS deassertion to data not valid (read
hold time)
t
OFF
0.0
—
0.0
—
ns
135
Last CAS assertion to RAS deassertion
t
RSH
0.75
×
T
C
−
4.0
33.5
—
21.0
—
ns
136
Previous CAS deassertion to RAS
deassertion
t
RHCP
2
×
T
C
−
4.0
96.0
—
62.7
—
ns
137
CAS assertion pulse width
t
CAS
0.75
×
T
C
−
4.0
33.5
—
21.0
—
ns
138
Last CAS deassertion to RAS
deassertion
4
•
BRW[1:0] = 00
t
CRP
1.75
×
T
C
−
6.0
81.5
—
52.3
—
ns
•
BRW[1:0] = 01
3.25
×
T
C
−
6.0
156.5
102.2
—
ns
•
BRW[1:0] = 10
4.25
×
T
C
−
6.0
206.5
135.5
—
ns
•
BRW[1:0] = 11
6.25
×
T
C
– 6.0
306.5
—
202.1
—
ns
139
CAS deassertion pulse width
t
CP
0.5
×
T
C
−
4.0
21.0
—
12.7
—
ns
140
Column address valid to CAS assertion
t
ASC
0.5
×
T
C
−
4.0
21.0
—
12.7
—
ns
141
CAS assertion to column address not
valid
t
CAH
0.75
×
T
C
−
4.0
33.5
—
21.0
—
ns
142
Last column address valid to RAS
deassertion
t
RAL
2
×
T
C
−
4.0
96.0
—
62.7
—
ns
143
WR deassertion to CAS assertion
t
RCS
0.75
×
T
C
−
3.8
33.7
—
21.2
—
ns
144
CAS deassertion to WR assertion
t
RCH
0.25
×
T
C
−
3.7
8.8
—
4.6
—
ns
145
CAS assertion to WR deassertion
t
WCH
0.5
×
T
C
−
4.2
20.8
—
12.5
—
ns
146
WR assertion pulse widt
h
t
WP
1.5
×
T
C
−
4.5
70.5
—
45.5
—
ns
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: ......