Texas Instruments OMAP5912 Reference Manual page 396

OMAP5912 Clock Architecture
Figure 15. ULPD Clocking Overview
ULPD
CAM.CLKOUT
System clock
48 MHz (UART1)
48 MHz (UART2)
48 MHz (UART3)
48 MHz (USB OTG)
12/13-19.2 MHz
ARMXOR_CK
(to APLL)
Clock (Camera I/F)
EXT_48M
MCLK
ULPD_PLL_CLK
BCLK
32-kHz clock
SYS_CLK_OUT
12 MHz/ 32 kHz
32 kHz (gated)
USB.CLKO
48 MHz (APLL)
System Clock
48 MHz (MMCSDIO1)
48 MHz (MMCSDIO2)
System Clock (FAC)
12/13-19.2 MHz
(gated/to OMAP3.2)
SPRU751A Clocks 41