dsp56366 Freescale Semiconductor, Inc, dsp56366 Datasheet - Page 54

• Manufacturer Part Number: dsp56366
• Description: Dsp56366 24-bit Audio Digital Signal Processor
• Manufacturer: Freescale Semiconductor, Inc

3-28
No.
169 CAS deassertion to RAS assertion
170 CAS deassertion pulse width
171 Row address valid to RAS assertion
172 RAS assertion to row address not valid
173 Column address valid to CAS assertion
174 CAS assertion to column address not valid
175 RAS assertion to column address not valid
176 Column address valid to RAS deassertion
177 WR deassertion to CAS assertion
178 CAS deassertion to WR
179 RAS deassertion to WR
180 CAS assertion to WR deassertion
181 RAS assertion to WR deassertion
182 WR assertion pulse width
183 WR assertion to RAS deassertion
184 WR assertion to CAS deassertion
185 Data valid to CAS assertion (write)
186 CAS assertion to data not valid (write)
187 RAS assertion to data not valid (write)
188 WR assertion to CAS assertion
189 CAS assertion to RAS assertion (refresh)
190 RAS deassertion to CAS assertion (refresh)
191 RD assertion to RAS deassertion
192 RD assertion to data valid
Table 3-14 DRAM Out-of-Page and Refresh Timings, Eight Wait States
Characteristics
5
5
assertion
assertion
3
DSP56366 Technical Data, Rev. 3.1
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
WCH
WCR
t
WCS
CRP
RAH
CAH
RCS
RCH
RRH
RWL
CWL
t
DHR
CSR
RPC
ROH
t
t
ASR
ASC
t
t
RAL
WP
CP
AR
DS
DH
GA
4.25 × T
2.75 × T
3.25 × T
1.75 × T
0.75 × T
3.25 × T
5.75 × T
1.25 × T
0.25 × T
0.25 × T
8.75 × T
7.75 × T
4.75 × T
3.25 × T
5.75 × T
1.75 × T
5.5 × T
8.5 × T
5.5 × T
1.5 × T
8.5 × T
7.5 × T
7.5 × T
Expression
4 × T
2 × T
3 × T
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
− 4.0
− 3.8
− 4.2
− 4.2
− 4.5
− 4.3
− 4.0
− 4.0
− 7.5
− 6.5
− 4.0
− 4.0
− 4.0
− 4.0
− 4.0
− 4.0
− 4.0
− 3.7
− 3.7
− 3.0
− 4.3
− 4.3
− 4.0
− 4.0
− 4.0
− 4.0
4
124.3
128.3
113.1
124.8
59.8
37.7
45.2
22.5
45.2
83.1
56.6
26.5
15.2
41.3
79.1
68.0
45.2
83.1
79.0
18.7
22.5
Min
7.4
0.1
—
—
—
66 MHz
106.1
Max
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
1, 2
(continued)
Freescale Semiconductor
101.8
105.1
102.3
49.1
30.4
36.6
17.9
36.6
67.9
46.0
21.2
11.9
33.3
64.6
92.6
55.4
36.6
67.9
64.5
14.8
17.9
Min
5.4
0.1
—
—
—
80 MHz
Max
87.3
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns