DSP56364D Motorola Inc, DSP56364D Datasheet - Page 48

• Manufacturer Part Number: DSP56364D
• Description: 24-Bit Audio Digital Signal Processor
• Manufacturer: Motorola Inc

Specifications
External Memory Expansion Port (Port A)
2-28
No.
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
Page mode cycle time for two consecutive
accesses of the same direction.
Page mode cycle time for mixed (read and
write) accesses.
CAS assertion to data valid (read)
Column address valid to data valid (read)
CAS deassertion to data not valid (read hold
time)
Last CAS assertion to RAS deassertion
Previous CAS deassertion to RAS deasser-
tion
CAS assertion pulse width
Last CAS deassertion to RAS assertion
CAS deassertion pulse width
Column address valid to CAS assertion
CAS assertion to column address not valid
Last column address valid to RAS deassertion
WR deassertion to CAS assertion
CAS deassertion to WR assertion
CAS assertion to WR deassertion
WR assertion pulse width
Last WR assertion to RAS deassertion
WR assertion to CAS deassertion
• BRW[1:0] = 00
• BRW[1:0] = 01
• BRW[1:0] = 10
• BRW[1:0] = 11
Table 2-12 DRAM Page Mode Timings, Four Wait States
Characteristics
Freescale Semiconductor, Inc.
For More Information On This Product,
DSP56364 Advance Information
Go to: www.freescale.com
5
Symbol
t
t
RHCP
t
t
t
t
t
t
t
t
t
t
t
t
WCH
t
RWL
CWL
t
CAC
RSH
CAS
CRP
t
ASC
CAH
RCS
RCH
t
OFF
RAL
WP
PC
AA
CP
2.75
3.75
2.75
4.25
5.25
7.25
1.25
3.25
3.75
4.75
1.25
3.5
2.5
3.5
4.5
Expression
6
2
5
1.25
T
2
C
T
T
T
T
T
T
T
C
C
C
T
T
T
T
T
T
T
T
T
T
T
C
C
C
C
T
C
C
C
C
C
C
C
C
C
C
4.0
C
C
T
4.0
4.0
4.0
C
4.0
4.0
4.0
4.5
4.3
7.0
7.0
6.0
6.0
6.0
6.0
4.0
4.2
4.3
1, 2, 3
50.0
45.0
31.0
56.0
21.0
46.5
66.5
16.0
31.0
46.0
28.3
40.5
43.2
33.2
Min
0.0
6.0
8.5
8.5
—
—
—
—
MOTOROLA
Max
20.5
30.5
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns