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參數(shù)資料
| 型號： | 73K222AU |
| 廠商： | TDK Corporation |
| 英文描述： | Single-Chip Modem Modem with UART |
| 中文描述： | 單芯片調(diào)制解調(diào)器調(diào)制解調(diào)器與異步 |
| 文件頁數(shù)： | 13/28頁 |
| 文件大?。?/td> | 160K |
| 代理商： | 73K222AU |
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73K222AL
V.22, V.21, Bell 212A, 103
Single-Chip Modem
13
TONE REGISTER
D7
D6
D5
D4
D3
D2
D1
D0
TR
011
RXD
OUTPUT
CONTR.
TRANSMIT
GUARD
TONE
TRANSMIT
ANSWER
TONE
TRANSMIT
DTMF
DTMF 3
DTMF 2
DTMF 1/
OVER-
SPEED
DTMF 0/
ANSWER/
GUARD
BIT NO.
NAME
CONDITION
DESCRIPTION
D3 D2 D1 D0
0
0
1
1
0
1
0
1
Programs 1 of 16 DTMF tone pairs that will be
transmitted when TX DTMF and TX enable bit (CR0, bit
D1) are set. Tone encoding is shown below:
KEYBOARD
EQUIVALENT
DTMF CODE
D3 D2 D1 D0
TONES
LOW
HIGH
1
2
3
4
5
6
7
8
9
0
*
#
A
B
C
D
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
697
697
697
770
770
770
852
852
852
941
941
941
697
770
852
941
1209
1336
1477
1209
1336
1477
1209
1336
1477
1336
1209
1477
1633
1633
1633
1633
D3, D2,
D1, D0
DTMF 3,
2, 1, 0
0
Disable DTMF.
D4
Transmit
DTMF
1
Activates DTMF. The selected DTMF tones are
transmitted continuously when this bit is high. TX DTMF
overrides all other transmit functions.
D5
D4
D0
D5 interacts with bits D4 and D0 as shown.
0
0
X
Disables answer tone generator.
1
0
0
Enables answer tone generator. A 2225 Hz answer tone
will be transmitted continuously when the Transmit
Enable bit is set in CR0. The device must be in answer
mode.
D5
Transmit
Answer Tone
1
0
1
Likewise a 2100 Hz answer tone will be transmitted.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 73K222AU-IH | Single-Chip Modem Modem with UART |
| 73K222AU-IP | Single-Chip Modem Modem with UART |
| 73K222BL | V.22, V.21, Bell 212A,Bell 103 Single-Chip Modem with Integrated Hybrid(V.22, V.21, Bell 212A,Bell 103,帶混合電路的單片Modem) |
| 73K224BL | V.22bis/V.22/V.21/Bell 212A/103 Single-Chip Modem w/ Integrated Hybrid(V.22bis/V.22/V.21/Bell 212A/103單片Modem w/ 集成混合電路) |
| 73K224L | V.22bis/V.22/V.21/ Bell 212A/Bell 103 Single-Chip Modem |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 73K222AU-IH | 制造商:TDK 制造商全稱:TDK Electronics 功能描述:Single-Chip Modem Modem with UART |
| 73K222AU-IP | 制造商:TDK 制造商全稱:TDK Electronics 功能描述:Single-Chip Modem Modem with UART |
| 73K222BL | 制造商:TERIDIAN 制造商全稱:TERIDIAN 功能描述:Single-Chip Modem |
| 73K222BL-IGT | 制造商:TDK 制造商全稱:TDK Electronics 功能描述:V.22, V.21, Bell 212A, Bell 103 Single-Chip Modem with Integrated Hybrid |
| 73K222BL-IH | 制造商:TDK 功能描述:73K222BL-IH |
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