Datasheet

TLV320AIC3120
www.ti.com
SLAS653A FEBRUARY 2010REVISED MAY 2012
Table 6-14. Page 12 Registers (continued)
REGISTER
RESET VALUE REGISTER NAME
NUMBER
125 (0x7D) 0000 0000 Coefficient C62(7:0) of DAC miniDSP (DAC buffer B)
126 (0x7E) 0000 0000 Coefficient C63(15:8) of DAC miniDSP (DAC buffer B)
127 (0x7F) 0000 0000 Coefficient C63(7:0) of DAC miniDSP (DAC buffer B)
6.12 Control Registers, Page 13: DAC Programmable Coefficients RAM Buffer B (65:127)
Default values shown for this page only become valid 100 μs following a hardware or software reset.
Table 6-15. Page 13 / Register 0 (0x00): Page Control Register
READ/ RESET
BIT DESCRIPTION
WRITE VALUE
D7–D0 R/W 0000 0000 0000 0000: Page 0 selected
0000 0001: Page 1 selected
...
1111 1110: Page 254 selected
1111 1111: Page 255 selected
The remaining page-13 registers are either reserved registers or are used for setting coefficients for the
various filters in the TLV320AIC3111. Reserved registers should not be written to.
The filter coefficient registers are arranged in pairs, with two adjacent 8-bit registers containing the 16-bit
coefficient for a single filter. The 16-bit integer contained in the MSB and LSB registers for a coefficient
are interpreted as a 2s-complement integer, with possible values ranging from –32,768 to 32,767. When
programming any coefficient value for a filter, the MSB register should always be written first, immediately
followed by the LSB register. Even if only the MSB or LSB portion of the coefficient changes, both
registers should be written in this sequence. Table 6-16 is a list of the page-13 registers, excepting the
previously described register 0.
Table 6-16. Page 13 Registers
REGISTER
RESET VALUE REGISTER NAME
NUMBER
1 (0x01) 0000 0000 Reserved. Do not write to this register.
Coefficient N0(15:8) for DAC-programmable first-order IIR or coefficient C65(15:8) of DAC
2 (0x02) 0111 1111
miniDSP (DAC buffer B)
Coefficient N0(7:0) for DAC-programmable first-order IIR or coefficient C65(7:0) of DAC
3 (0x03) 1111 1111
miniDSP (DAC buffer B)
Coefficient N1(15:8) for DAC-programmable first-order IIR or coefficient C66(15:8) of DAC
4 (0x04) 0000 0000
miniDSP (DAC buffer B)
Coefficient N1(7:0) for DAC-programmable first-order IIR or coefficient C66(7:0) of DAC
5 (0x05) 0000 0000
miniDSP (DAC buffer B)
Coefficient D1(15:8) for DAC-programmable first-order IIR or coefficient C67(15:8) of DAC
6 (0x06) 0000 0000
miniDSP (DAC buffer B)
Coefficient D1(7:0) for DAC-programmable first-order IIR or coefficient C67(7:0) of DAC
7 (0x07) 0000 0000
miniDSP (DAC buffer B)
8 (0x08) 0111 1111 Coefficient C68(15:8) of DAC miniDSP (DAC buffer B)
9 (0x09) 1111 1111 Coefficient C68(7:0) of DAC miniDSP (DAC buffer B)
10 (0x0A) 0000 0000 Coefficient C69(15:8) of DAC miniDSP (DAC buffer B)
11 (0x0B) 0000 0000 Coefficient C69(7:0) of DAC miniDSP (DAC buffer B)
12 (0x0C) 0000 0000 Coefficient C70(15:8) of DAC miniDSP (DAC buffer B)
13 (0x0D) 0000 0000 Coefficient C70(7:0) of DAC miniDSP (DAC buffer B)
Coefficient N0(15:8) for DRC first-order high-pass filter or coefficient C71(15:8) of DAC
14 (0x0E) 0111 1111
miniDSP (DAC buffer B)
Copyright © 2010–2012, Texas Instruments Incorporated REGISTER MAP 135
Submit Documentation Feedback
Product Folder Link(s): TLV320AIC3120