參數(shù)資料
型號(hào): 73M2921-IG
廠商: Electronic Theatre Controls, Inc.
英文描述: Advanced Single Chip Modem
中文描述: 先進(jìn)的單芯片調(diào)制解調(diào)器
文件頁(yè)數(shù): 22/41頁(yè)
文件大小: 222K
代理商: 73M2921-IG
73M2921
Advanced Single
Chip Modem
Page 22 of 41
TDK Semiconductor
February 99 Rev M
DATA MODE CONTROL REGISTER
ADDRESS: 05h (05d, 00101b)
MODE: DATA
BIT D7
RESERVED
BIT NO.
D0
BIT D6
ANS
BIT D5
GTEN
BIT D4
GTONE
BIT D3
RESERVED
DESCRIPTION
Forces a retrain request. Cleared by 73M2921.
BIT D2
RESERVED
BIT D1
RESERVED
BIT D0
RT FORCE
NAME
Retrain
Force
Reserved
Reserved
Reserved
Guard
Tone
Guard
Tone
Enable
Answer/
Originate
CONDITION
1
D1
D2
D3
D4
Reserved
Reserved
Reserved
Sets the guard tone to 550 Hz
Sets the guard tone to 1800 Hz
Enables the guard tones
1
0
1
D5
D6
(Main
Channel
Selection)
1
0
Sets the modem to be in Answer mode. When
Modulation is set for V.23, the 73M2921 transmits in
main channel @ 1200 b/s and Receives in back
channel @ 75 bps. When Modulation is set for Bell
202, the 73M2921 transmits @ 1200 bps.
Sets the modem into Originate mode. When
Modulation is set for V.23, the 73M2921 receives in
main channel @ 1200 bps and Transmits in back
channel @ 75 bps. When Modulation is set for Bell
202, the 73M2921 receives at 1200 bps.
Reserved for future use
D7
Reserved
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