dsp56362 Freescale Semiconductor, Inc, dsp56362 Datasheet - Page 68

• Manufacturer Part Number: dsp56362
• Description: Dsp56362 24-bit Audio Digital Signal Processor
• Manufacturer: Freescale Semiconductor, Inc

External Memory Expansion Port (Port A)
3-42
1
2
The asynchronous delays specified in the expressions are valid for DSP56362.
T212 is valid for Address Trace mode when the ATE bit in the OMR is set. BR is deasserted for internal accesses and
asserted for external accesses.
No.
218
219
220
221
222
223
224
AA0–AA3
CLKOUT
RD, WR
CLKOUT high to BB deassertion (output)
BB high to BB high impedance (output)
CLKOUT high to address and controls active
CLKOUT high to address and controls high impedance
CLKOUT high to AA active
CLKOUT high to AA deassertion
CLKOUT high to AA high impedance
A0–A17
BG
BR
BB
Table 3-18 Arbitration Bus Timings
Characteristics
212
Figure 3-22 Bus Acquisition Timings
DSP56362 Technical Data, Rev. 4
213
215
1
214
216
220
0.25 × T
(continued)
Expression
222
0.25 × T
0.25 × T
0.25 × T
0.75 × T
217
C
+ 4.0
C
C
C
C
Min
1.0
2.5
2.5
3.2
—
—
—
Freescale Semiconductor
100 MHz
AA0481
Max
4.0
4.5
2.5
6.5
7.5
—
—
Unit
ns
ns
ns
ns
ns
ns
ns