
SSM2804
Rev. 0 | Page 20 of 36
REGISTER MAP
The 7-bit I2C address of the SSM2804 is 0x3B (0111011). Table 9. Register Map
Address
Name
D7
D6
D5
D4
D3
D2
D1
D0
Default
0x00
Input mode
0
ZCD
GAINMOD[2:0]
INMOD[2:0]
0x00
0x01
INA volume
0
INAVOL[4:0]
0x00
0x02
INB volume
0
INBVOL[4:0]
0x00
0x03
INC volume
0
INCVOL[4:0]
0x00
0x04
Class-D left
volume
0
LCDVOL[4:0]
0x00
0x05
Class-D right
volume
0
RCDVOL[4:0]
0x00
0x06
LHP volume
0
LHPVOL[4:0]
0x00
0x07
RHP volume
0
RHPVOL[4:0]
0x00
0x08
HP input mixer
POPTIME[1:0]
RHPMOD[2:0]
LHPMOD[2:0]
0x00
0x09
Class-D input
mixer
CDSM[1:0]
RCDMOD[2:0]
LCDMOD[2:0]
0x00
0x0A
ALC Control 1
0
RECTIME[2:0]
ATTIME[2:0]
0x2B
0x0B
ALC Control 2
ALCEN
COMP[1:0]
ALCLV_FIX
ALCLV[3:0]
0x4B
0x0C
ALC Control 3
0
LCDBOOST RCDBOOST SOFTSTART
SOFTCLIPEN NGEN
NGATE[1:0]
0x00
0x0D
Power-down
control
PASSPDB
INCPDB
INBPDB
INAPDB
RCDPDB
LCDPDB
HPPDB
PWDB
0x00
0x0E
Additional
control
LIMLOCK
HPLIM[2:0]
LIM_MOD
TO
EDGE[1:0]
0x00
0x0F
0
OCCD
OCHP
OW
OT
0x00
0x10
SOFTRESET
0x00
1 This byte is read-only.
2 This byte is write-only.