參數資料
型號: MSM7502
廠商: OKI SEMICONDUCTOR CO., LTD.
元件分類: Codec
英文描述: Multi-Function PCM CODEC
中文描述: 多功能的PCM編解碼器
文件頁數: 26/35頁
文件大?。?/td> 196K
代理商: MSM7502
M
2
SW control and timer reset
WRITE Mode
Address Data
AD1 = 0, AD0 = 0
DB7
SW1
SW2
SW3
DB6 DB5 DB4 DB3 DB2 DB1 DB0
0
Control Data
Description for Control
Remarks
1
0
1
1
1
0
1
0
1
1
1
0
When hold tone or PB tone transmit is
selected, these inputs are muted.
0
0
1
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
1
0
1
0
1
1
1
Above codes
0
0
0
0
0
1
0
0
0
0
0
1
1
0
0
1
0
1
0
1
0
0
0
0
0
ON
ON
ON
Transmit handfree input
Transmit handset input
Receive input
SW4
ON
Side tone input
SW5
SW6
SW7
SW8
SW9
SW10
SW11
SW12
LA = 1
LB = 1
Above corresponding SW or latch is set to OFF or "0".
All of above SWs or latches are set to OFF or "0" at the initial setting stage.
Watchdog timer is reset.
ON
ON
ON
ON
ON
ON
ON
ON
Receive main amplifier input
Receive speaker input
Transmit path hold tone input
Receive path hold tone Acknowledge input
Additional receive input
Additional speaker input
Speaker DEC input
PCM output enable
General Latch output for external control
0
0
1
0
0
1
1
1
When Handfree input is selected, side
tone is muted.
When either of SW7 or SW8 is set to ON,
external terminal LML goes to "1".
Speaker DEC input = CODEC AOUT
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