AK7755EN_16 Datasheet, PDF (30/109 Pages) Asahi Kasei Microsystems – DSP with Mono ADC Stereo CODEC + Mic/Lineout Amp

[AK7755]
■ Control Register Settings
Control registers are reset by a power down release (PDN pin = “L” → “H”). Since control registers
CONT00-CONT01 are related to clock generation, they must be changed during clock reset (CKRSTN bit
(CONT01: D0) = “0”). CONT12-CONT19 can be written during operation. The other control registers must
be changed during clock reset or system reset (CRESETN bit (CONT0F: D3) and DSPRESETN bit
(CONT0F: D2) = “0”) to avoid errors and noises.
CONT0D: D6, CONT1A: D4, CONT26: D0 and CONT2A: D7 bits must be set to “1” during system reset.
Once these bits are set to “1”, the value will be kept until power down the AK7755 (PDN pin = “L”). Do
not write to the CONT1F-CONT25, CONT27-CONT29 and CONT2B-CONT3F registers.
CONT00-CONT1E, CONT26, CONT2A
Name
D7
D6
D5
CONT00
0
CKM[2]
CKM[1]
CONT01
JX2E
LRDOWN
BITFS[1]
CONT02 TDM256
BCKP
LRIF[1]
CONT03 DIF2[1]
DIF2[0]
DOF2[1]
CONT04 DRMS[1]
DRMS[0]
DRAM[1]
CONT05
ACCRAM
CLRN
JX3E
FIRMODE1
CONT06 DEM[1]
DEM[0]
DIFDA[1]
CONT07 DOF4[1]
DOF4[0]
DOF3[1]
CONT08 SELDAI[1] SELDAI[0] SELDO3[1]
CONT09
DIFR
INR
DIFL
CONT0A CLKOE
BICKE
LRCKE
CONT0B
0
0
0
CONT0C
DSM
0
ATSPAD
CONT0D
STO
1
0
CONT0E PMADR
PMADL
PMAD2L
CONT0F
0
0
PML1
CONT10 WDTEN
CRCE
PLLLOCKE
CONT11 CKADJ[7] CKADJ[6] CKADJ[5]
CONT12 MGNR[3]
MGNR[2]
MGNR[1]
CONT13 LIGN[3]
LIGN[2]
LIGN[1]
CONT14 LOVOL2[3] LOVOL2[2] LOVOL2[1]
CONT15 VOLADL[7] VOLADL[6] VOLADL[5]
CONT16 VOLADR[7] VOLADR[6] VOLADR[5]
CONT17 VOLAD2L[7] VOLAD2L[6] VOLAD2L[5]
CONT18 VOLDAL[7] VOLDAL[6] VOLDAL[5]
CONT19 VOLDAR[7] VOLDAR[6] VOLDAR[5]
CONT1A ADMUTE AD2MUTE DAMUTE
CONT1B AMGNR[3] AMGNR[2] AMGNR[1]
CONT1C
0
0
0
CONT1D VOLAD2R[7] VOLAD2R[6] VOLAD2R[5]
CONT1E DMIC1
DMCLKP1 DMCLKE1
CONT26
0
0
0
CONT2A
1
0
0
D4
CKM[0]
BITFS[0]
LRIF[0]
DOF2[0]
DRAM[0]
D3
D2
AINE
DFS[2]
CLKS[2]
CLKS[1]
TDMMODE[1] TDMMODE[0]
BANK[3]
BANK[2]
POMODE
0
D1
DFS[1]
CLKS[0]
JX1E
BANK[1]
WAVP[1]
FIRMODE2 SUBMODE1 SUBMODE2 MEMDIV[1]
DIFDA[0]
DOF3[0]
SELDO3[0]
INL
0
0
ATSPDA
0
PMLO3
LRDETN
SOCFG
CKADJ[4]
MGNR[0]
LIGN[0]
LOVOL2[0]
VOLADL[4]
VOLADR[4]
VOLAD2L[4]
VOLDAL[4]
VOLDAR[4]
1
AMGNR[0]
0
VOLAD2R[4]
DMIC2
0
0
0
0
SELDO2[1]
LO3SW3
0
0
0
0
PMLO2
CRESETN
SELSTO
CKADJ[3]
MGNL[3]
LOVOL3[3]
LOVOL1[3]
VOLADL[3]
VOLADR[3]
VOLAD2L[3]
VOLDAL[3]
VOLDAR[3]
ADRCRE
AMGNL[3]
0
VOLAD2R[3]
DMCLKP2
0
0
DIF1[2]
DOF1[2]
SELDO2[0]
LO3SW2
OUT3E
0
SELDO1[2]
0
PMLO1
DSPRESETN
0
CKADJ[2]
MGNL[2]
LOVOL3[2]
LOVOL1[2]
VOLADL[2]
VOLADR[2]
VOLAD2L[2]
VOLDAL[2]
VOLDAR[2]
ADRCLE
AMGNL[2]
0
VOLAD2R[2]
DMCLKE2
0
0
DIF1[1]
DOF1[1]
SELMIX[1]
LO3SW1
OUT2E
0
SELDO1[1]
0
PMDAR
PMAD2R
0
CKADJ[1]
MGNL[1]
LOVOL3[1]
LOVOL1[1]
VOLADL[1]
VOLADR[1]
VOLAD2L[1]
VOLDAL[1]
VOLDAR[1]
MICRZCE
AMGNL[1]
0
VOLAD2R[1]
0
0
0
D0
DFS[0]
CKRESETN
JX0E
BANK[0]
WAVP[0]
MEMDIV[0]
DIF1[0]
DOF1[0]
SELMIX[0]
SELMIX[2]
OUT1E
0
SELDO1[0]
DLS
PMDAL
DLRDY
CKADJEN
CKADJ[0]
MGNL[0]
LOVOL3[0]
LOVOL1[0]
VOLADL[0]
VOLADR[0]
VOLAD2L[0]
VOLDAL[0]
VOLDAR[0]
MICLZCE
AMGNL[0]
0
VOLAD2R[0]
0
1
0
Default
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
80h
00h
00h
00h
00h
00h
00h
00h
30h
30h
30h
18h
18h
00h
00h
00h
30h
00h
00h
00h
014006643-E-00
- 30 -
2014/10