DM385, DM388
SPRS821D –MARCH 2013–REVISED DECEMBER 2013
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3.3.14 Oscillator/PLL, Audio Reference Clocks, and Clock Generator
3.3.14.1 Audio Reference Clocks
Table 3-30. Audio Reference Clocks Terminal Functions
SIGNAL NAME [1]
AUD_CLKIN0
DESCRIPTION [2]
TYPE [3]
AAR BALL [4]
AF31
Audio Reference Clock 0 for Audio Peripherals
Audio Reference Clock 1 for Audio Peripherals
Audio Reference Clock 2 for Audio Peripherals
I
AUD_CLKIN1
AUD_CLKIN2
I
I
AF27
AG30
3.3.14.2 CLOCK GENERATOR
Table 3-31. Clock Generator Terminal Functions
SIGNAL NAME [1]
DESCRIPTION [2]
TYPE [3]
AAR BALL [4]
CLKOUT0
CLKOUT1
Device Clock output 0. Can be used as a system clock
for other devices.
O
AJ31, H12
Device Clock output 1. Can be used as a system clock
for other devices.
O
AB9, J16
3.3.14.3 OSCILLATOR/PLL
Table 3-32. Oscillator/PLL Terminal Functions
SIGNAL NAME [1]
DESCRIPTION [2]
TYPE [3]
AAR BALL [4]
AUXOSC_MXI
Auxiliary Crystal input [Optional Audio/Video Reference
Crystal Input]. Crystal connection to internal oscillator for
auxiliary clock. Functions as AUX_CLKIN clock input
when an external oscillator is used. If neither a crystal or
external clock is used, this pin should be connected to
ground.
I
V30
AUXOSC_MXO
Auxiliary Crystal output [Optional Audio/Video Reference
Crystal Output]. When auxiliary oscillator is BYPASSED,
leave this pin unconnected.
O
U31
CLKIN32
RTC Clock input. Optional 32.768 KHz clock for RTC
reference.
I
I
AJ31
F30
DEVOSC_MXI
Device Crystal input. Crystal connection to internal
oscillator for system clock. Functions as DEV_CLKIN
clock input when an external oscillator is used.
DEVOSC_MXO
Device Crystal output. Crystal connection to internal
oscillator for system clock. When device oscillator is
BYPASSED, leave this pin unconnected.
O
G31
DEVOSC_WAKE
DEV_CLKIN
Oscillator Wake-up input
I
I
U28
F30
Clock input when an external oscillator is used
84
Device Pins
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