參數(shù)資料
型號(hào): 73M2921-IG
廠(chǎng)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): 18/41頁(yè)
文件大?。?/td> 222K
代理商: 73M2921-IG
73M2921
Advanced Single
Chip Modem
Page 18 of 41
TDK Semiconductor
February 99 Rev M
2921 GENERAL REGISTER SET SUMMARY
NAME
R/W
FIVE BIT
ADDRESS
(HEX)
01h
COMMENT
Data Mode
Handshake
Connection Detect
DTMF Dial
DTMF Detect
Data Mode Control
Test Control
R/W
Selects automatic handshake to be performed
R
02h
03h
04h
05h
06h
Read Only, indicates successful handshake in Data mode
Sets DTMF digit and twist for transmission
Read only, indicates DTMF digit received
Selects answer/originate and retrain modes allowed
Selects test patterns, test mode handshaking,
scrambler/descrambler operation.
Read only, revision level of the 73M2921
Enables interrupts on changes of state from Detect Reg.
1 status bits.
Read only, indicates status of detectors used during
handshaking for various modes.
Enables interrupts on changes of state from Detect Reg.
2 status bits.
Read only, indicates status of detectors used during
handshaking for various modes.
Selects data format or FSK, carrier transmission in DATA
mode or DTMF transmit enable in CALL PROGRESS
mode.
Controls transmit power level, idle mode power
consumption, receive gain boost, clock out enable
Controls Fax speed and transmit or receive mode
Reserved
Controls Call Progress, Data or Idle Mode selection. Also
controls method of initialization and modification of
default settings. Affects operation of all registers.
Read only, Least Significant Byte of the DSP error signal.
Indication of signal quality.
Read only, Most Significant Byte of the DSP error signal.
Indication of signal quality.
Controls Call Progress transmit functions.
Enables interrupts on changes of state from PCPD detect
bits.
Read only, indicates detection of precise call progress
tones.
R/W
R
R/W
R/W
Version
Detect 1 Enable
R
07h
08h
R/W
Detect Register 1
R
09h
Detect 2 Enable
R/W
0Ah
Detect Register 2
R
0Bh
Transmit Control
R/W
0Ch
General Control
R/W
0Dh
Fax Handshake
Reserved
Mode Control
R/W
X
R/W
0Eh
0Fh
010h
MSE0
R
011h
MSE1
R
012h
CPTX
PCPD Detect
Enable
PCPD Detect
R/W
R/W
014h
018h
R
019h
Note: Reserved bits should never be programmed to a 1 state.
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