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參數(shù)資料
| 型號(hào)： | 73K321L |
| 廠商： | TDK Corporation |
| 英文描述： | Miniature Switch, High Precision |
| 中文描述： | 國(guó)際電話電報(bào)諮詢委員會(huì).23，.21單芯片調(diào)制解調(diào)器 |
| 文件頁(yè)數(shù)： | 6/24頁(yè) |
| 文件大?。?/td> | 140K |
| 代理商： | 73K321L |
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73K321L
CCITT V.23, V.21
Single-Chip
6
REGISTER DESCRIPTIONS
Four 8-bit internal registers are accessible for control
and status monitoring. The registers are accessed in
read or write operations by addressing the A0 and
A1 address lines in Serial mode, or the AD0 and
AD1 lines in Parallel mode. The AD0 and AD1 lines
are latched by ALE. Register CR0 controls the
method by which data is transferred over the phone
line. CR1 controls the interface between the
microprocessor and the 73K321L internal state. DR
is a detect register which provides an indication of
Monitored modem status conditions. TR, the tone
control register, controls the DTMF generator;
answer and guard tones and RXD output gate used
in the modem initial connect sequence. All registers
are read/write except for DR which is read only.
Register control and status bits are identified below:
REGISTER BIT SUMMARY
NOTE:
When a register containing reserved control
bits is written into, the reserved bits must be
programmed as 0's.
X = Undefined, mask in software
DTMF0/
ANSWER/SPEC.
TONE SELECT
REGISTER
CONTROL
REGISTER
0
ID
REGISTER
CONTROL
REGISTER
1
DETECT
REGISTER
TONE
CONTROL
REGISTER
ID
CR1
DR
TR
ADDRESS
AD2 - AD0
110
011
010
001
000
D7
TRANSMIT
PATTERN
1
TRANSMIT
PATTERN
0
RXD
OUTPUT
CONTROL
D6
D5
ENABLE
DETECT
INTERRUPT
RECEIVE
DATA
TRANSMIT
ANSWER
TONE
TRANSMIT
MODE
2
TRANSMIT
DTMF
TRANSMIT
MODE
1
CLK
CONTROL
CARRIER
DETECT
DTMF3
DTMF1
TRANSMIT
MODE
0
RESET
SPECIAL
TONE
DTMF2/
V.23 FDX
TRANSMIT
ENABLE
TEST
MODE
1
CALL
PROGRESS
ANSWER/
ORIGINATE
TEST
MODE
0
LONG
LOOP
D4
D3
D2
D1
D0
DATA BIT NUMBER
CR0
TRANSMIT
MODE 4
ID
TRANSMIT
CALLING
TONE
TRANSMIT
MODE
3
ADD PH. EQ.
(V.23)
ID
ID
ID
0
X
X
X
X
X
X
X
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 73K322L-IH | CCITT V.23, V.22, V.21 Single-Chip Modem |
| 73K322L-IP | CCITT V.23, V.22, V.21 Single-Chip Modem |
| 73K322L | CCITT V.23, V.22, V.21 Single-Chip Modem(CCITT V.23, V.22, V.21單片Modem) |
| 73M223 | 1200 Baud FSK Modem |
| 73M223-CL | 1200 Baud FSK Modem |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 73K321L-IH | 制造商:TDK 制造商全稱:TDK Electronics 功能描述:CCITT V.23, V.21 Single-Chip Modem |
| 73K321L-IP | 制造商:TDK 制造商全稱:TDK Electronics 功能描述:CCITT V.23, V.21 Single-Chip Modem |
| 73K322L | 制造商:TDK 制造商全稱:TDK Electronics 功能描述:CCITT V.23, V.22, V.21 Single-Chip Modem |
| 73K322L-IH | 制造商:TDK 制造商全稱:TDK Electronics 功能描述:CCITT V.23, V.22, V.21 Single-Chip Modem |
| 73K322L-IP | 制造商:TDK 制造商全稱:TDK Electronics 功能描述:CCITT V.23, V.22, V.21 Single-Chip Modem |
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