wm9714l Wolfson Microelectronics plc, wm9714l Datasheet - Page 32

• Manufacturer Part Number: wm9714l
• Description: Ac?97 Audio Codec
• Manufacturer: Wolfson Microelectronics plc

WM9714L
RECORD SELECTOR
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The record selector determines which input signals are routed into the audio ADC. The left and right
channels can be selected independently. This is useful for recording a phone call: one channel can
be used for the RX signal and the other for the TX signal, so that both sides of the conversation are
digitized.
Table 11 Audio Record Selector
14h
Record
Routing /
Mux Select
REGISTER
ADDRESS
6
5:3
2:0
BIT
RECBST
RECSL
RECSR
LABEL
0
000
000
DEFAULT
ADC Record Boost Control
1 = +20dB
0 = 0dB
Note: RECBST gain is in addition to the
microphone pre-amps (MPABST and
MPBBST bits) and record gain (GRL and
GRR / GRL bits).
Left Record Mux Source Control
000 = MICA (pre-PGA)
001 = MICB (pre-PGA)
010 = LINEL (pre-PGA)
011 = MONOIN (pre-PGA)
100 = HPMIXL
101 = SPKMIC
110 = MONOMIX
111 = Reserved
Right Record Mux Source Control
000 = MICA (pre-PGA)
001 = MICB (pre-PGA)
010 = LINEL (pre-PGA)
011 = MONOIN (pre-PGA)
100 = HPMIXL
101 = SPKMIC
110 = MONOMIX
111 = Reserved
DESCRIPTION
PP, Rev 3.2, October 2008
Pre-Production
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