Peripheral Module Clocking; Peripheral Clocks - Texas Instruments OMAP5912 Reference Manual

OMAP5912 Clock Architecture
5.13

Peripheral Module Clocking

Figure 18. Peripheral Clocking
Internal
system
Internal
interface clock
(bus transactions)
Bus interface
5.13.1

Peripheral Clocks

Table 12. Peripheral Clocks and Associated Controls
Peripheral Name
ULPD
Notes: 1) The GPIO functional clock is controlled by CAM_CLK_CTRL[2]. If CAM_CLK_CTRL[2] is set , the GPIO function-
al clock is idle.
2) The SoSSI functional clock can be divided further from 1 to 8 by setting CONF_MODE_CLK_SEL[19:17].
46 Clocks
Figure 18 shows the peripheral clocking.
Peripheral
Internal
interface
domain Functional domain
Functional clock
Peripherals can have three types of clocks:
-
A functional clock, which is used for peripheral internal logic clocking
-
An internal interface clock, which is used for specific register clocking, that
is, the OCP clock
-
External interface clocks, which are used for transmit/receive protocols,
for example (master/slave operation)
See each peripheral specification to better understand how the peripheral
uses these clocks.
Functional Clock
Domain
32 kHz from RTC
ARMXOR_CK
External
interface
domain
Interface Clock MOD_CONF_
CTRL_0
(OMAP5912 Con-
figuration)
External
External
interface
clock
(receive/transmit)
Receive/transmit
transactions
MOD_CONF_
CTRL_1
(OMAP5912
Configuration)
SPRU751A