Texas Instruments OMAP5912 Reference Manual page 211

Table 70. MPU Clock Out Definition Register (ARM_CKOUT1)
Bit Name
31:6 RESERVED
5:4 TCLKOUT
3:2 DCLKOUT
1:0 ACLKOUT
SPRU749A
Base Address = 0xFFFE CE00, Offset = 0x1C
Function
Reading these bits gives undefined values. Writing to
them has no effect.
The POCLKOUT3 pin functions are:
00: Reserved
01: POCLKOUT3 pin is an output and reflects
CK_GEN3 clocking signal.
10: POCLKOUT3 pin is an output and reflects the
TC_CK clock.
11: Reserved
POCLKOUT3 is not a target clock; it is a free-running
clock to select CK_GEN3 or TC_CK frequency.
The POCLKOUT2 pin functions are:
00: POCLKOUT2 pin is an output and reflects the
DSPMMU_CK clock.
01: POCLKOUT2 pin is an output and reflects the
CK_GEN2 clocking signal.
10: POCLKOUT2 pin is an output and reflects the
DSP_CK clock.
11: POCLKOUT2 pin is an output and reflects low-
frequency clock that supplies internal watchdog
timers (CK_REF/14).
POCLKOUT2 is not a target clock; it is a free-running
clock to select DSPMMU_CK, CK_GEN2, or
DSP_CK frequency.
The POCLKOUT1 pin functions are:
00: Reserved
01: POCLKOUT1 output pin reflects CK_GEN1
10: POCLKOUT1 output pin reflects ARM_CK
11: POCLKOUT1 output pin reflects the
low-frequency clock that supplies the internal timers
(CK_REF/14).
POCLKOUT1 is not a target clock; it is a free-running
clock to select CK_GEN1, ARM_CK, or CK_REF/14
clock frequency.
Clock Generation and Reset Management
R/W
R/W
R/W
R/W
R/W
OMAP3.2 Subsystem
Reset
0x0000
01
01
01
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