STA321TR View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

STA321TR

4-channel digital audio system with FFX™ driver

STMicroelectronics 

STA321

5

Clock management

Clock management

Figure 11. Clock management scheme

CKOCFG[6:5]

CLKOUT_SEL

1/2 11

sys_clk

pll_clk_in_i

1

BICLKI1

MCLK

XTI

1

0

OR

PLL

0

PLLB[7]

MISC[0]

CLK_CORE_ON

PLLPFE[6]

BICLK2PLL

CKOCFG[4]

CLK_FFX_ON

CKOCFG[3]

CLK_SRC_ON

CKOCFG[2]

CLK_PROC_ON

ADCCFG[1]

CLK_ADC_ON

1/8 10

1/8 01

1/4 00

Clock management

clk_i2c

1/2

clk_ffx

clk_src

1/2

1/2

clk_proc

clk_adc

1/2

CLKOUT

FFX

SAI_in1

SAI_in2

PLLB[5] ADC_CLKSEL

1/4 0

1

ADC

clk_adc_in

clk_proc

1

0

1

0

PLLB[3] P2S1_CLKSEL

PLLB[1] P2S2_CLKSEL

SAI_out1

SAI_out2

Table 14. Clock control registers

Register Name

PLLB on page 136

ADCCFG0 on page 133

CKOCFG on page 134

0xC9

0xC6

0xC7

Address

Doc ID 15351 Rev 3

29/157

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