dsp56004 Freescale Semiconductor, Inc, dsp56004 Datasheet - Page 61

• Manufacturer Part Number: dsp56004
• Description: Symphonytm Audio Dsp Family 24-bit Digital Signal Processors
• Manufacturer: Freescale Semiconductor, Inc

ON-CHIP EMULATION (OnCE ) TIMING
MOTOROLA
No.
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
DSCK Low
DSCK High
DSCK Cycle Time
DR Asserted to DSO (ACK) Asserted
DSCK High to DSO Valid
DSCK High to DSO Invalid
DSI Valid to DSCK Low (Set-up)
DSCK Low to DSI Invalid (Hold)
Last DSCK Low to OS0–OS1, ACK Active
DSO (ACK) Asserted to First DSCK High
DSO (ACK) Assertion Width
DSO (ACK) Asserted to OS0–OS1 High
Impedance
OS0–OS1 Valid to EXTAL Transition #2
EXTAL Transition #2 to OS0–OS1 Invalid
Last DSCK Low of Read Register to First DSCK
High of Next Command
Last DSCK Low to DSO Invalid (Hold)
DR Assertion to EXTAL Transition #2 for Wake
Up from Wait State
EXTAL Transition #2 to DSO After Wake Up from
Wait State
(C
L
= 50 pF + 2 TTL Loads)
1
Freescale Semiconductor, Inc.
For More Information On This Product,
Characteristics
Go to: www.freescale.com
Table 2-17 OnCE Timing
DSP56004/D, Rev. 3
4 T
3 T
7 T
T
On-Chip Emulation (OnCE ) Timing
C
17 T
Min
5 T
2 T
C
200
C
+ T
C
40
40
—
15
—
10
0
3
3
3
– 21
+ T
+ 10
All frequencies
C
C
C
H
L
– 3
5 T
T
Max
C
—
—
—
—
—
—
—
—
—
—
42
—
—
—
—
C
0
– 10
+ 7
Specifications
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
2-37