參數(shù)資料
型號(hào)： HT95CXXX
廠商： Holtek Semiconductor Inc.
英文描述： CID Type Phone 8-Bit MCU
中文描述： 刑事偵緝式電話8位微控制器
文件頁(yè)數(shù)： 29/51頁(yè)
文件大小： 384K
代理商： HT95CXXX
HT95CXXX
Rev. 1.50
29
May 26, 2005
Phone controller also supports the dialer I/O flag to monitor the dialer status.
Bit No.
Label
R/W
Function
0
HFI
RO
1: The HFI pin level is 1.
0: The HFI pin level is 0.
1
HFO
RO
1: The HFO pin level is 1.
0: The HFO pin level is 0.
2
HDI
RO
1: The HDI pin level is 1.
0: The HDI pin level is 0.
3
HDO
RO
1: The HDO pin level is 1.
0: The HDO pin level is 0.
4
HKS
RO
1: The HKS pin level is 1.
0: The HKS pin level is 0.
5
SPO
RW
1: The PO pin is controlled by the combination of the HKS, HFI and HDI pin.
0: The PO pin level is set to 0 by software.
6
SDNPO
RW
1: The DNPO pin level is set to floating by software.
0: The DNPO pin level is set to 0 by software.
7
XMUTE
RW
1: The XMUTE pin is set to floating by software.
0: The XMUTE pin is set to 0 by software.
DIALERIO (16H) Register
TheSPOflagisspecialdesignedtocontrolthePO.WhentheflagSPOissetto1,thePOpiniscontrolledbythecombi-
nation of the HKS pin, HFI pin and HDI pin. The PO pin will always be 0 if the flag SPO=0.
The relation between the Dialer I/O function (SPO=1)
Dialer Function
Dialer I/O Pin (Flag) Status
Result
HKS
HFO
HDO
PO
DNPO
Telephone Line
On-hook
1
0
0
0
floating
break
On-hook & Hand-free
1
1
0
1
floating
make
On-hook & Hold-line
1
0
1
1
floating
make
Off-hook
0
0
0
1
floating
make
Off-hook & Hand-free
0
1
0
1
floating
make
Off-hook & Hold-line
0
0
1
1
floating
make
The following describes the dialer I/O function status machine figure (Available on Normal mode, Green mode or Sleep
mode):
(
&
(
&
(
&
$ # %
$ # %
$
%
$ # %
$
%
(
&
(
&
$
%
$ # %
(
&
$
%
(
&
$
(
(
&
$
(
(
&
$
(
(
&
$
(
(
&
(
&
$
%
Note: 1.Ifthedialerstatusison-hookandhold-line,thefallingedgetransitionontoHDIpinwillnotgeneratethedialer
I/O interrupt.
2. Dialer I/O function is not available in Idle mode
Off-hook: A falling edge to HKS pin
On-hook: A rising edge to HKS pin
HFI: A high pulse to HFI pin (Hand-free request is generated.)
HDI: A low pulse to HDI pin (Hold-line request is generated.)
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