OMAP-L137
SPRS563G – SEPTEMBER 2008 – REVISED JUNE 2014
www.ti.com
Table 6-52. McASP1 Switching Characteristics
(1)
NO.
PARAMETER
MIN
MAX
UNIT
Cycle time, AHCLKR1 internal, AHCLKR1 output
25
Cycle time, AHCLKR1 external, AHCLKR1 output
25
9
t
c(AHCLKRX)
ns
Cycle time, AHCLKX1 internal, AHCLKX1 output
25
Cycle time, AHCLKX1 external, AHCLKX1 output
25
Pulse duration, AHCLKR1 internal, AHCLKR1 output
(AHR/2) – 2.5
(2)
Pulse duration, AHCLKR1 external, AHCLKR1 output
(AHR/2) – 2.5
(2)
10
t
w(AHCLKRX)
ns
Pulse duration, AHCLKX1 internal, AHCLKX1 output
(AHX/2) – 2.5
(3)
Pulse duration, AHCLKX1 external, AHCLKX1 output
(AHX/2) – 2.5
(3)
Cycle time, ACLKR1 internal, ACLKR1 output
greater of 2P or 25
(4)
Cycle time, ACLKR1 external, ACLKR1 output
greater of 2P or 25
(4)
11
t
c(ACLKRX)
ns
Cycle time, ACLKX1 internal, ACLKX1 output
greater of 2P or 25
(4)
Cycle time, ACLKX1 external, ACLKX1 output
greater of 2P or 25
(4)
Pulse duration, ACLKR1 internal, ACLKR1 output
(AR/2) – 2.5
(5)
Pulse duration, ACLKR1 external, ACLKR1 output
(AR/2) – 2.5
(5)
12
t
w(ACLKRX)
ns
Pulse duration, ACLKX1 internal, ACLKX1 output
(AX/2) – 2.5
(6)
Pulse duration, ACLKX1 external, ACLKX1 output
(AX/2) – 2.5
(6)
Delay time, ACLKR1 internal, AFSR output
(7)
0.5
6.7
Delay time, ACLKX1 internal, AFSX output
0.5
6.7
Delay time, ACLKR1 external input, AFSR output
(7)
3.4
13.8
13
t
d(ACLKRX-AFSRX)
ns
Delay time, ACLKX1 external input, AFSX output
3.4
13.8
Delay time, ACLKR1 external output, AFSR output
(7)
3.4
13.8
Delay time, ACLKX1 external output, AFSX output
3.4
13.8
Delay time, ACLKX1 internal, AXR1[n] output
0.5
6.7
14
t
d(ACLKX-AXRV)
Delay time, ACLKX1 external input, AXR1[n] output
3.4
13.8
ns
Delay time, ACLKX1 external output, AXR1[n] output
3.4
13.8
Disable time, ACLKX1 internal, AXR1[n] output
0.5
6.7
15
t
dis(ACLKX-AXRHZ)
Disable time, ACLKX1 external input, AXR1[n] output
3.9
13.8
ns
Disable time, ACLKX1 external output, AXR1[n] output
3.9
13.8
(1)
McASP1 ACLKX1 internal – ACLKXCTL.CLKXM = 1, PDIR.ACLKX = 1
McASP1 ACLKX1 external input – ACLKXCTL.CLKXM = 0, PDIR.ACLKX = 0
McASP1 ACLKX1 external output – ACLKXCTL.CLKXM = 0, PDIR.ACLKX = 1
McASP1 ACLKR1 internal – ACLKR1CTL.CLKRM = 1, PDIR.ACLKR =1
McASP1 ACLKR1 external input – ACLKRCTL.CLKRM = 0, PDIR.ACLKR = 0
McASP1 ACLKR1 external output – ACLKRCTL.CLKRM = 0, PDIR.ACLKR = 1
(2)
AHR - Cycle time, AHCLKR1.
(3)
AHX - Cycle time, AHCLKX1.
(4)
P = SYSCLK2 period
(5)
AR - ACLKR1 period.
(6)
AX - ACLKX1 period.
(7)
McASP1 ACLKXCTL.ASYNC=1: Receiver is clocked by its own ACLKR1
124
Peripheral Information and Electrical Specifications
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