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參數(shù)資料
| 型號： | EM91455BP |
| 廠商： | ELAN Microelctronics Corp . |
| 英文描述： | TONE/PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION |
| 中文描述： | 音頻/脈沖撥號與LCD接口及IPP檢測功能 |
| 文件頁數(shù)： | 8/24頁 |
| 文件大?。?/td> | 199K |
| 代理商： | EM91455BP |
EM91455 SERIES
TONE/PULSE DIALER WITH LCD INTERFACE
AND I.P.P. DETECT FUNCTION
8
* This specification are subject to be changed without notice.
9.24.1998
Operating flow chart
<Note> : HF = Handfree
HD = Hold
Truth table
Pin level
Operating state
Input
HKS
H
L
L
H
L
H
H
I/O
Output
HFO
L
L
H
H
L
L
H
XMUTE
H/F
H/F
H/F
H/F
L/L
L/L
L/L
PO
F
F
F
F
F
F
F
HDO
L
L
L
L
H
H
H
DTMF
-
-
-
-
-
-
active
(1) On-hook, idle state
(2) Off-hook line
(3) Off-hook, HF line
(4) On-hook, HF line
(5) Off-hook, HD line
(6) On-hook, HD line
(7) IPP state
Note : F=floating (high impedance); H=logic “High”; L=logic “Low” level.
XMUTE are I/O port, so Input will effect state situation change, and which state dialer stay will
effect output level.
SDO (Serial Data Output) function
The SDO is serial data output which format is same as UART protocol. SDO function is designed to drive LCD
driver and voice synthesizer. So the dialing numbers can be display on LCD screen with EM32100 (or EM32117
). The SDO signal consists of two start bits, six data bits and two stop bits. The bit time is about 3.9 ms (256 Hz)
and output sequences are following by start bits, data bits (LSB to MSB) and stop bits.
0
1
bit 0
bit1
bit2
data bits
bit3
bit4
bit5
ready
start bits
0
1
stop bits
(1)
On-hook State
(7)
IPP State
(2)
Off-hook State
(4)
On-hook
Hand-free State
HKS=Lo
HKS=Lo
HKS=Lo
HKS=Hi
HF
HF
=Hi
HF
HD
HF
HD
(6)
On-hook
Hold-line State
(3)
Off-hook
Hand-free State
HF
HF
HF
HD
HKS=Hi
HKS=Lo
(5)
Off-hook
Hold-line State
HD
HD
HKS=Hi
XMUTE
XMUTE=Lo
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| EM91455C | IC XTAL CLK 0SC 16.0 MHZHYBRID +/-.01% |
| EM91455CK | TONE/PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION |
| EM91455D | TONE/PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION |
| EM91455DK | TONE/PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION |
| EM91455 | Tone/Pulse Switchable Dialer with LCD Interface and I.P.P. Detect Function(雙音/脈沖可轉(zhuǎn)換撥號器（帶液晶顯示接口和盜撥檢測功能）) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EM91455C | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:TONE/PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION |
| EM91455CK | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:TONE/PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION |
| EM91455D | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:TONE/PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION |
| EM91455DK | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:TONE/PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION |
| EM91465 | 制造商:EMC 制造商全稱:ELAN Microelectronics Corp 功能描述:TONE/PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION |
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