Texas Instruments AM335 Series Technical Reference Manual

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8.1.12.1.5 CM_PER_CPGMAC0_CLKCTRL Register (offset = 14h) [reset = 70000h]
CM_PER_CPGMAC0_CLKCTRL is shown in Figure 8-27 and described in Table 8-34.
This register manages the CPSW clocks.
Figure 8-27. CM_PER_CPGMAC0_CLKCTRL Register
31 30 29 28 27 26 25 24
Reserved
R-0h
23 22 21 20 19 18 17 16
Reserved STBYST IDLEST
R-0h R-1h R-3h
15 14 13 12 11 10 9 8
Reserved
R-0h
7 6 5 4 3 2 1 0
Reserved MODULEMODE
R-0h R/W-0h
LEGEND: R/W = Read/Write; R = Read only; W1toCl = Write 1 to clear bit; -n = value after reset
Table 8-34. CM_PER_CPGMAC0_CLKCTRL Register Field Descriptions
Bit Field Type Reset Description
31-19 Reserved R 0h
18 STBYST R 1h Module standby status.
This bit is warm reset insensitive when CPSW RESET_ISO is
enabled
0x0 = Func : Module is functional (not in standby)
0x1 = Standby : Module is in standby
17-16 IDLEST R 3h Module idle status.
This bit is warm reset insensitive when CPSW RESET_ISO is
enabled
0x0 = Func : Module is fully functional, including OCP
0x1 = Trans : Module is performing transition: wakeup, or sleep, or
sleep abortion
0x2 = Idle : Module is in Idle mode (only OCP part). It is functional if
using separate functional clock
0x3 = Disable : Module is disabled and cannot be accessed
15-2 Reserved R 0h
1-0 MODULEMODE R/W 0h Control the way mandatory clocks are managed.
This bit is warm reset insensitive when CPSW RESET_ISO is
enabled
0x0 = DISABLED : Module is disable by SW. Any OCP access to
module results in an error, except if resulting from a module wakeup
(asynchronous wakeup).
0x1 = RESERVED_1 : Reserved
0x2 = ENABLE : Module is explicitly enabled. Interface clock (if not
used for functions) may be gated according to the clock domain
state. Functional clocks are guarantied to stay present. As long as in
this configuration, power domain sleep transition cannot happen.
0x3 = RESERVED : Reserved
555
SPRUH73H–October 2011–Revised April 2013 Power, Reset, and Clock Management (PRCM)
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Texas Instruments AM335 Series Specifications

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Brand	Texas Instruments
Model	AM335 Series
Category	Computer Hardware
Language	English