ꢀ ꢁꢂ ꢃ ꢄꢅ ꢆꢇ ꢈ ꢉꢉ ꢅꢃ
SLAS356 − DECEMBER 2001
PARAMETER MEASUREMENT INFORMATION
register map
Table 1. Power Control Register: Address {00} HEX
BIT NUMBER
DEFINITIONS
7
1
6
1
5
1
4
1
3
0
2
1
1
1
0
0
Default setting PWRUPSEL = 0
Default setting PWRUPSEL = 1
Reference system, power down
Reference system, power up
EAR AMP1 selected, EAR AMP2 power down
EAR AMP2 selected, EAR AMP1 power down
Receive channel enabled
Receive channel muted
1
0
0
1
1
0
1
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
X
X
X
X
X
X
X
X
X
X
X
0
X
X
X
X
X
0
X
X
X
X
X
X
X
X
X
1
X
X
X
X
X
X
X
1
X
X
X
X
0
X
X
1
0
1
X
X
X
X
0
0
X
X
X
X
X
X
X
X
X
X
X
X
1
1
1
Receive channel, power down
MICBIAS selected
X
X
X
X
X
0
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
MICBIAS power down
X
X
X
X
X
X
X
MIC1 selected
0
MIC2 selected
X
X
X
X
X
Transmit channel enabled
Transmit channel muted
Transmit channel power down
Sidetone enabled
1
1
1
X
X
X
X
1
Sidetone muted
Table 2. Mode Control Register: Address {01} HEX
BIT NUMBER
DEFINITIONS
7
0
6
0
5
0
4
0
3
0
2
0
1
1
0
0
Default setting
X
X
X
X
X
X
X
X
X
1
X
X
X
X
X
X
X
X
X
X
X
X
X
0
X
X
X
X
X
X
X
X
X
X
X
0
X
X
X
X
X
X
X
X
0
X
X
X
X
X
X
0
X
X
X
X
0
0
0
TX channel high-pass filter enabled and slope filter enabled
TX channel high-pass filter enabled and slope filter disabled
TX channel high-pass filter disabled and slope filter enabled
TX channel high-pass filter disabled and slope filter disabled
RX channel high-pass filter disabled (low pass only)
RX channel high-pass filter enabled
BUZZCON disabled
0
1
1
0
1
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
1
X
X
X
X
X
X
X
X
X
1
BUZZCON enabled
X
X
X
X
X
X
X
Linear mode selected
1
A-law companding mode selected
µ-law companding mode selected
TX and RX channels normal mode
PCM loopback mode
0
1
X
X
X
X
X
X
X
X
1
X
X
Tone mode disabled
1
Tone mode enabled
18
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