Specifications
External Memory Expansion Port (Port A)
MOTOROLA
DSP56367
3-27
Table 3-11 DRAM Page Mode Timings, Three Wait States
No.
Characteristics
Symbol
Expression
Min
Ma
x
Unit
131
Page mode cycle time for two consecutive accesses of the same
direction
t
PC
2
×
T
C
40.0
—
ns
Page mode cycle time for mixed (read and write) accesses
1.25
×
T
C
35.0
—
132
CAS assertion to data valid (read)
t
CAC
2
×
T
C
−
7.0
—
13.0
ns
133
Column address valid to data valid (read)
t
AA
3
×
T
C
−
7.0
—
23.0
ns
134
CAS deassertion to data not valid (read hold time)
t
OFF
0.0
—
ns
135
Last CAS assertion to RAS deassertion
t
RSH
2.5
×
T
C
−
4.0
21.0
—
ns
136
Previous CAS deassertion to RAS deassertion
t
RHCP
4.5
×
T
C
−
4.0
41.0
—
ns
137
CAS assertion pulse width
t
CAS
2
×
T
C
−
4.0
16.0
—
ns
138
Last CAS deassertion to RAS assertion
5
•
BRW[1:0] = 00
t
CRP
2.25
×
T
C
−
6.0
—
—
ns
•
BRW[1:0] = 01
3.75
×
T
C
−
6.0
—
—
ns
•
BRW[1:0] = 10
4.75
×
T
C
−
6.0
41.5
—
ns
•
BRW[1:0] = 11
6.75
×
T
C
−
6.0
61.5
—
ns
139
CAS deassertion pulse width
t
CP
1.5
×
T
C
−
4.0
11.0
—
ns
140
Column address valid to CAS assertion
t
ASC
T
C
−
4.0
6.0
—
ns
141
CAS assertion to column address not valid
t
CAH
2.5
×
T
C
−
4.0
21.0
—
ns
142
Last column address valid to RAS deassertion
t
RAL
4
×
T
C
−
4.0
36.0
—
ns
143
WR deassertion to CAS assertion
t
RCS
1.25
×
T
C
−
4.0
8.5
—
ns
144
CAS deassertion to WR assertion
t
RCH
0.75
×
T
C
− 4.0
3.5
—
ns
145
CAS assertion to WR deassertion
t
WCH
2.25
×
T
C
−
4.2
18.3
—
ns
146
WR assertion pulse width
t
WP
3.5
×
T
C
−
4.5
30.5
—
ns
147
Last WR assertion to RAS deassertion
t
RWL
3.75
×
T
C
−
4.3
33.2
—
ns
148
WR assertion to CAS deassertion
t
CWL
3.25
×
T
C
−
4.3
28.2
—
ns
149
Data valid to CAS assertion (write)
t
DS
0.5
×
T
C
−
4.0
1.0
—
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: ......