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AM3874 Datasheet(PDF) 313 Page - Texas Instruments

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Part # AM3874
Description  AM387x Sitara??ARM Processors
PDF  361 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

AM3874 Datasheet(HTML) 313 Page - Texas Instruments

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AM3874, AM3871
www.ti.com
SPRS695C – SEPTEMBER 2011 – REVISED DECEMBER 2013
8.14.3 McASP (McASP[5:0]) Electrical Data/Timing
Table 8-78. Timing Requirements for McASP(1)
(see Figure 8-81)
OPP100/120/166
NO.
McASP[5:2,0] Only
McASP1 Only
UNIT
MIN
MAX
MIN
MAX
1
tc(AHCLKRX)
Cycle time, MCA[x]_AHCLKR/X
20
20
ns
2
tw(AHCLKRX)
Pulse duration, MCA[x]_AHCLKR/X high or low
0.5P - 3(2)
0.5P - 3(2)
ns
Any Other
20
20
ns
Conditions
3
tc(ACLKRX)
Cycle time, MCA[x]_ACLKR/X
ACLKx, AFSX
and AXR are all
–
12.5
ns
inputs
Any Other
0.5R - 3(3)
0.5R - 3(3)
ns
Conditions
Pulse duration, MCA[x]_ACLKR/X high
4
tw(ACLKRX)
ACLKx, AFSX
or low
0.5R -
and AXR are all
–
ns
1.5(3)
inputs
ACLKR/X int
10.5
10.5
tsu(AFSRX-
Setup time, MCA[x]_AFSR/X input
5
ACLKR/X ext in
4
2
ns
ACLKRX)
valid before MCA[X]_ACLKR/X
ACLKR/X ext out
4
2
ACLKR/X int
-1
-1
th(ACLKRX-
Hold time, MCA[x]_AFSR/X input valid
6
ACLKR/X ext in
1
2
ns
AFSRX)
after MCA[X]_ACLKR/X
ACLKR/X ext out
1
2
ACLKR/X int
10.5
10.5
Setup time, MCA[x]_AXR input valid
7
tsu(AXR-ACLKRX)
ACLKR/X ext in
4
2
ns
before MCA[X]_ACLKR/X
ACLKR/X ext out
4
2
ACLKR/X int
-1
-1
Hold time, MCA[x]_AXR input valid
8
th(ACLKRX-AXR)
ACLKR/X ext in
1
2
ns
after MCA[X]_ACLKR/X
ACLKR/X ext out
1
2
(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
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
(2)
P = MCA[x]_AHCLKR/X period in nano seconds (ns).
(3)
R = MCA[x]_ACLKR/X period in ns.
Copyright © 2011–2013, Texas Instruments Incorporated
Peripheral Information and Timings
313
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Product Folder Links: AM3874 AM3871



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