DSP56156FV40 MOTOROLA [Motorola, Inc], DSP56156FV40 Datasheet - Page 50
DSP56156FV40
Manufacturer Part Number
DSP56156FV40
Description
16-bit Digital Signal Processor
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.DSP56156FV40.pdf
(76 pages)
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50
AC Electrical Characteristics and Timing
OnCE Port Timing
OnCE
(V
NOTES:
Num
CC
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
= 5.0 V dc ± 10%, T
TM
DSCK High to DSO Valid
DSI Valid to DSCK Low (Setup)
DSCK Low to DSI Invalid (Hold)
DSCK High
DSCK Low
DSCK Cycle Time
CLKO High to OS0-OS1 Valid
CLKO High to OS0-OS1 Invalid
Last DSCK High to OS0-OS1
Last DSCK High to ACK Active (data)
Last DSCK High to ACK Active (command)
DSO (ACK) Asserted to OS0-OS1 Three-state
DSO (ACK) Asserted to First DSCK High
DSO (ACK) Width Asserted:
Last DSCK High of Read Register to First
DSCK High of Next Command
DSCK High to DSO Invalid
DR asserted to DSO (ACK) Asserted
1. 45%-55% duty cycle
2. Td = DSCK High (Timing #183)
Port Timing
• when entering debug mode
• when acknowledging command/data transfer
J
Freescale Semiconductor, Inc.
= -40 to +125 C, C
For More Information On This Product,
Characteristic
DSP56156 Data Sheet
Table 22 OnCE Port Timing
Go to: www.freescale.com
L
= 50 pF + 1 TTL Load)
(See Note 1)
(See Note 1)
(See Note 1)
(See Note 2)
(See Note 2)
(See Note 2)
(See Note 2)
10T+Td+14.5
10T+Td+13.5
21T+Td+13.5
11T+19.5
2Tc+0.5
Td+11.2
Min
3T-2
40/50/60 MHz
4Tc
2Tc
2Tc
3Tc
6Tc
5.2
—
—
—
0
MOTOROLA
2Tc+3
Max
3T-5
14.5
37
—
—
—
—
—
—
—
—
—
—
—
—
0
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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