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TMS320DM642 Datasheet(PDF) 115 Page - Texas Instruments

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Part # TMS320DM642
Description  Video/Imaging Fixed-Point Digital Signal Processor
PDF  178 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TMS320DM642 Datasheet(HTML) 115 Page - Texas Instruments

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TMS320DM642
Video/Imaging Fixed-Point Digital Signal Processor
SPRS200J – JULY 2002 – REVISED AUGUST 2005
Table 5-34. Switching Characteristics Over Recommended Operating Conditions for McASP
(see Figure 5-33 and Figure 5-34)
(1)
–500
–600
NO.
PARAMETER
UNIT
–720
MIN
MAX
9
tc(AHCKRX)
Cycle time, AHCLKR/X
20
ns
10
tw(AHCKRX)
Pulse duration, AHCLKR/X high or low
10
ns
11
tc(CKRX)
Cycle time, ACLKR/X
ACLKR/X int
33
ns
12
tw(CKRX)
Pulse duration, ACLKR/X high or low
ACLKR/X int
16.5
ns
ACLKR/X int
–1
5
ns
13
td(CKRX-FRX)
Delay time, ACLKR/X transmit edge to AFSX/R output valid
ACLKR/X ext
0
10
ns
ACLKX int
–1
5
ns
14
td(CKX-AXRV)
Delay time, ACLKX transmit edge to AXR output valid
ACLKX ext
0
10
ns
ACLKR/X int
0
10
ns
Disable time, AXR high impedance following last data bit from
15
tdis(CKRX-AXRHZ)
ACLKR/X transmit edge
ACLKR/X ext
0
10
ns
(1)
ACLKX internal: ACLKXCTL.CLKXM=1, PDIR.ACLKX = 1
ACLKX external input: ACLKXCTL.CLKXM=0, PDIR.ACLKX=0
ACLKX external output: ACLKXCTL.CLKXM=0, PDIR.ACLKX=1
ACLKR internal: ACLKRCTL.CLKRM=1, PDIR.ACLKR = 1
ACLKR external input: ACLKRCTL.CLKRM=0, PDIR.ACLKR=0
ACLKR external output: ACLKRCTL.CLKRM=0, PDIR.ACLKR=1
DM642 Peripheral Information and Electrical Specifications
115



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