Datasheet

PCM5121, PCM5122
www.ti.com SLAS763A –AUGUST 2012–REVISED SEPTEMBER 2012
PCM512x Register Map
In any page, register 0 is the Page Select Register. The register value selects the Register Page from 0 to 255
for next read or write command.
Table 55. Register Map Summary (continued)
Table 55. Register Map Summary
40, 41 I
2
S configuration
Register Description
42 DAC data path
Number
43 DSP program selection
Page 0
44 Clock missing detection period
0 Control register
59 Auto mute time
1 Analog control register
60 - 64 Digital volume
2 Standby, Powerdown requests
65 Auto mute
3 Mute
75 - 79 Reserved
4 PLL Lock Flag, PLL enable
80 - 85 GPIOn output selection
5 Reserved
86, 87 GPIO control
6 SPI MISO function select
88, 89 Reserved
7 De-emphasis enable, SDOUT select
90 DSP overflow
8 GPIO enables
91 - 94 Sample rate status
9 BCK, LRCLK configuration
95 - 107 Reserved
10 DSP GPIO Input
108 Analog mute monitor
11 Reserved
109 - 118 Reserved
12 Master mode BCK, LRCLK reset
119 GPIO input
13 PLL clock source select
120 Auto Mute flags
14 - 19 Reserved
Page 1
20 - 24 PLL dividers
1 Output amplitude type
25, 26 Reserved
2 Analog gain control
27 DSP clock divider
3, 4 Reserved
28 DAC clock divider
5 Undervoltage protection
29 NCP clock divider
6 Analog mute control
30 OSR clock divider
7 Analog gain boost
31 Reserved
8, 9 VCOM configuration
32, 33 Master mode dividers
Page 44
34 f
S
speed mode
1 Coefficient memory (CRAM) control
35, 36 IDAC (number of DSP clock cycles available in
Pages 44 - 52 Coefficient buffer - A (256 coeffs x 24 bits) : See
one audio frame)
Table 56
37 Ignore various errors
Pages 66 - 74 Coefficient buffer - B (256 coeffs x 24 bits) : See
38,39 Reserved
Table 57
Table 56. Coefficient Buffer-A Map
Coeff NO Page NO Base Register Base Register+0 Base Register+1 Base Register+2 Base Register+3
C0 44 8 Coef(23:16) Coef(15:8) Coef(7:0) Reserved.
C1 44 12 Coef(23:16) Coef(15:8) Coef(7:0) Reserved.
.. .. .. .. .. .. ..
C29 44 124 Coef(23:16) Coef(15:8) Coef(7:0) Reserved.
C30 45 8 Coef(23:16) Coef(15:8) Coef(7:0) Reserved.
.. .. .. .. .. .. ..
C59 45 124 Coef(23:16) Coef(15:8) Coef(7:0) Reserved.
C60 46 8 Coef(23:16) Coef(15:8) Coef(7:0) Reserved.
.. .. .. .. .. .. ..
C89 46 124 Coef(23:16) Coef(15:8) Coef(7:0) Reserved.
C90 47 8 Coef(23:16) Coef(15:8) Coef(7:0) Reserved.
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