OMAP-L137
SPRS563G – SEPTEMBER 2008 – REVISED JUNE 2014
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Table 6-54. McASP2 Switching Characteristics
(1)
NO.
PARAMETER
MIN
MAX
UNIT
Cycle time, AHCLKR2 internal, AHCLKR2 output
15
Cycle time, AHCLKR2 external, AHCLKR2 output
15
9
t
c(AHCLKRX)
ns
Cycle time, AHCLKX2 internal, AHCLKX2 output
15
Cycle time, AHCLKX2 external, AHCLKX2 output
15
Pulse duration, AHCLKR2 internal, AHCLKR2 output
(AHR/2) – 2.5
(2)
Pulse duration, AHCLKR2 external, AHCLKR2 output
(AHR/2) – 2.5
(2)
10
t
w(AHCLKRX)
ns
Pulse duration, AHCLKX2 internal, AHCLKX2 output
(AHX/2) – 2.5
(3)
Pulse duration, AHCLKX2 external, AHCLKX2 output
(AHX/2) – 2.5
(3)
Cycle time, ACLKR2 internal, ACLKR2 output
greater of 2P or 15
(4)
Cycle time, ACLKR2 external, ACLKR2 output
greater of 2P or 15
(4)
11
t
c(ACLKRX)
ns
Cycle time, ACLKX2 internal, ACLKX2 output
greater of 2P or 15
(4)
Cycle time, ACLKX2 external, ACLKX2 output
greater of 2P or 15
(4)
Pulse duration, ACLKR2 internal, ACLKR2 output
(AR/2) – 2.5
(5)
Pulse duration, ACLKR2 external, ACLKR2 output
(AR/2) – 2.5
(5)
12
t
w(ACLKRX)
ns
Pulse duration, ACLKX2 internal, ACLKX2 output
(AX/2) – 2.5
(6)
Pulse duration, ACLKX2 external, ACLKX2 output
(AX/2) – 2.5
(6)
Delay time, ACLKR2 internal, AFSR output
(7)
-1.4
2.8
Delay time, ACLKX2 internal, AFSX output
-1.4
2.8
Delay time, ACLKR2 external input, AFSR output
(7)
2.1
10
13
t
d(ACLKRX-AFSRX)
ns
Delay time, ACLKX2 external input, AFSX output
2.1
10
Delay time, ACLKR2 external output, AFSR output
(7)
2.1
10
Delay time, ACLKX2 external output, AFSX output
2.1
10
Delay time, ACLKX2 internal, AXR2[n] output
-1.4
2.8
14
t
d(ACLKX-AXRV)
Delay time, ACLKX2 external input, AXR2[n] output
2.1
10
ns
Delay time, ACLKX2 external output, AXR2[n] output
2.1
10
Disable time, ACLKX2 internal, AXR2[n] output
-1.4
2.8
15
t
dis(ACLKX-AXRHZ)
Disable time, ACLKX2 external input, AXR2[n] output
2.9
10
ns
Disable time, ACLKX2 external output, AXR2[n] output
2.9
10
(1)
McASP2 ACLKX2 internal – ACLKXCTL.CLKXM = 1, PDIR.ACLKX = 1
McASP2 ACLKX2 external input – ACLKXCTL.CLKXM = 0, PDIR.ACLKX = 0
McASP2 ACLKX2 external output – ACLKXCTL.CLKXM = 0, PDIR.ACLKX = 1
McASP2 ACLKR2 internal – ACLKR2CTL.CLKRM = 1, PDIR.ACLKR =1
McASP2 ACLKR2 external input – ACLKRCTL.CLKRM = 0, PDIR.ACLKR = 0
McASP2 ACLKR2 external output – ACLKRCTL.CLKRM = 0, PDIR.ACLKR = 1
(2)
AHR - Cycle time, AHCLKR2.
(3)
AHX - Cycle time, AHCLKX2.
(4)
P = SYSCLK2 period
(5)
AR - ACLKR2 period.
(6)
AX - ACLKX2 period.
(7)
McASP2 ACLKXCTL.ASYNC=1: Receiver is clocked by its own ACLKR2
126
Peripheral Information and Electrical Specifications
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