Public Version
PRCM Functional Description
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Table 3-33. Clock Distribution (continued)
Power Domain
Clock
Generator
Type
Destination
GPT3_ALWON_FCLK
PRM
Always-on
GPTIMER3
GPT4_ALWON_FCLK
PRM
Always-on
GPTIMER4
GPT5_ALWON_FCLK
PRM
Always-on
GPTIMER5
GPT6_ALWON_FCLK
PRM
Always-on
GPTIMER6
GPT7_ALWON_FCLK
PRM
Always-on
GPTIMER7
GPT8_ALWON_FCLK
PRM
Always-on
GPTIMER8
GPT9_ALWON_FCLK
PRM
Always-on
GPTIMER9
PER_L4_ICLK
CM
Normal
UART[3, 4], PER L4 interconnect,
WDTIMER3, GPIO[2..6],
GPTIMER[2..9], McBSP[2..4]
WKUP
WKUP_32K_FCLK
PRM
Always-on
WDTIMER2, GPIO1
32K_FCLK
PRM
Always-on
32-kHz sync timer
GPT1_FCLK
PRM
Always-on
GPTIMER1
WKUP_L4_ICLK
PRM
Normal
WKUP L4 interconnect, GPTIMER1,
32-kHz sync timer, GPIO1, WDTIMER2
SMARTREFLEX
SR_ALWON_FCLK
PRM
Always-on
SR1, SR2
SR_L4_ICLK
CM
Normal
SR1, SR2
EFUSE
EFUSE_ALWON_FCLK
PRM
Always-on
eFuse farm
DPLL1
DPLL1_ALWON_FCLK
PRM
Always-on
DPLL1
DPLL1_FCLK
CM
Normal
DPLL2
DPLL2_ALWON_FCLK
PRM
Always-on
DPLL2
DPLL2_FCLK
CM
Normal
DPLL3
DPLL3_ALWON_FCLK
PRM
Always-on
DPLL3
DPLL4
DPLL4_ALWON_FCLK
PRM
Always-on
DPLL4
DPLL5
DPLL5_ALWON_FCLK
PRM
Always-on
DPLL5
NOTE:
•
Modules supplied only by the L3 interface clock:
–
MPU asynchronous bridge
–
IVA2.2 asynchronous bridges
–
All memory controllers (OCM ROM, OCM RAM, SDRC, SMS, and GPMC)
•
Modules that require L3 and L4 clocks:
–
SDMA
–
HS USB
•
Modules fed by the L4 clock:
–
SCM
–
Mailboxes
–
ICR
–
Modem INTC
–
All peripherals (McBSP1, McBSP5, MMC1, MMC2, MMC3, I2C1, I2C2, I2C3,
McSPI1, McSPI2, McSPI3, McSPI4, UART1, UART2, HDQ, GPTIMER10,
GPTIMER11, McBSP2, McBSP3, McBSP4. UART3, UART4, GPIO2, GPIO3,
GPIO4, GPIO5, GPIO6, WDT3, GPTIMER2, GPTIMER3, GPTIMER4, GPTIMER5,
GPTIMER6, GPTIMER7, GPTIMER8 and GPTIMER9)
324
Power, Reset, and Clock Management
SWPU177N – December 2009 – Revised November 2010
Copyright © 2009–2010, Texas Instruments Incorporated