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MSM7584C View Datasheet(PDF) - Oki Electric Industry

Part Name
Description
MFG CO.
MSM7584C
OKI
Oki Electric Industry OKI
'MSM7584C' PDF : 57 Pages View PDF
¡ Semiconductor
MSM7584C
(7) CR6 (VOX Function Control)
CR6
Initial Value
B7
VOX
ON/OFF
0
B6
ON
LVL1
0
B5
ON
LVL0
0
B4
OFF
TIME
0
B3
B2
B1
B0
VOX RX NOISE RX NOISE RX NOISE
IN LEVEL SEL LVL1
LVL0
0
0
0
0
B7: .............. VOX function ON/OFF
0: OFF
1: ON
B6, B5: .......Transmit side voice/silence detector level settings
(0,0): –20 dBm0
(0,1): –25 dBm0
(1,0): –30 dBm0
(1,1): –35 dBm0
B4: .............. Hangover time (refer to Fig. 2) settings 0: 160 ms 1: 320 ms
B3: .............. Receive side VOX input signal
0: Internal background noise transmit 1:Voicereceivesignaltransmit
When using this data, set the VOXI pin to "0".
B2: .............. Receive side background noise level setting
0: Internal automatic setting 1: Externa setting (by B1, B0)
Internal automatic setting Æ Sets to the voice signal level when B3
(VOXI) changes from "1" to "0".
B1, B0: .......External setting background noise level
(0,0): No noise
(0,1): –45 dBm0
(1,0): –35 dBm0
(1,1): –25 dBm0
(8) CR7 (Detect Register: Read-only)
CR7
Initial Value
B7
B6
B5
B4
B3
B2
B1
B0
VOX Silent Level Silent Level
BUSY
RPM
OUT
1
0
0
0
0
0
0
0
0
0
B7: ........................... Transmit side voice/silence detection 0: Silence 1: Voice
B6, B5: .................... Transmit side silence level (indicator)
(0,0):Below –60 dBm0
(0,1): –50 to –60 dBm0
(1,0): –40 to –50 dBm0
(1,1): Above –40 dBm0
Note: These outputs are enabled when the VOX function is turned ON by CR6 - B7.
B4 - B2: ................... Not used
B1: ........................... Serial register I/F monitoring.
This bit monitors the Read and Write of addresses at the serial
register I/F.
0: Stop 1: Reading or Writing
B0: ........................... Monitors serial register recording and playback.
0: Stop 1: Recording or Playing back
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