DA6116.001
27 February, 2009
REGISTER DESCRIPTION
Register
Write Operation Status
CR6
7
X
6
1
5
0
Address Byte
4
1
3
0
2
R
1
X
0
X
msb…lsb
Output code
00000000
00000001
00000010
00000011
Output code
00000000
00000001
00000010
00000011
Input code
11111111
11111110
11111101
•
•
00000010
00000001
00000000
Input code
11111111
11111110
11111101
•
•
11100000
00000010
00000001
00000000
Input code
11111111
11111110
11111101
•
•
11100000
00000010
00000001
00000000
Data Byte
Function
Both channels ready
Right channel busy Left
channel busy
Both channels busy
Peak Detector Status
CR4
X
1
0
1
1
R
X
X
Peak Detector
Reference
CR3
X
1
1
0
0
R/W
X
X
Left Channel Gain
CR2
X
1
1
0
1
R/W
X
X
Right Channel Gain
CR1
X
1
1
1
0
R/W
X
X
Test Mode, CR5
Normal Write, Both
Instant Write, Left (CR2)
Instant Write, Right
(CR1)
Instant Write, Both
X
X
X
X
X
1
1
0
0
0
1
0
1
1
1
1
0
0
1
1
1
1
1
0
1
R/W
W
W
W
W
X
X
X
X
X
X
X
X
X
X
No overload
Right overload
Left overload
Both overload
DAC output, Note 1.
VREF(255)
VREF(254)
VREF(253)
•
•
VREF(2)
VREF(1)
VREF(0)
Gain dB
+15.5
+15.0
+14.5
•
•
0.0
-111.0
-111.5
Mute
Gain dB
+15.5
+15.0
+14.5
•
•
0.0
-111.0
-111.5
Mute
Reserved
Write to both gain registers
Instant gain set to left channel
Instant gain set to right channel
Instant gain set to both channels
Note 1. Reference voltage is calculated from VREF = (0.0036 + 0.0145 • CODE) • AVCC
Address byte bits:
•
Bit 2 is read/write bit (1=read, 0=write).
•
Bits marked as X are don’t care bits.
•
The instant write commands write values to CR1 and CR2 registers for right and left channels respectively.
These values can be read by using the specified read commands for CR1 and CR2 registers.
7 (18)
MAS [ MICRO ANALOG SYSTEMS ]
