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ML7005 Datasheet(PDF) 22 Page - LAPIS Semiconductor Co., Ltd.

Part # ML7005
Description  DTMF Transceiver
PDF  26 Pages
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Manufacturer  LAPIS [LAPIS Semiconductor Co., Ltd.]
Direct Link  http://www.lapis-semi.com/
Logo LAPIS - LAPIS Semiconductor Co., Ltd.

ML7005 Datasheet(HTML) 22 Page - LAPIS Semiconductor Co., Ltd.

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Register Settings for Each Mode
An example of register settings for each mode is shown below.
Table 4 Register Setting
Address in
Intel
processor
mode
Motorola
processor
mode
Mode
Description
D1
D0
ALE
WRB
D3 D2 D1 D0
Active
register
(1) Wait until power
supply is stabilized
—
—
—
—
—
—
—
—
—
(2) PD pin = "1"
(internal circuit is reset)
—
—
—
—
—
—
—
—
—
(3) Wait 200
s or more
—
—
—
—
—
—
—
—
—
(4) PD pin = "0"
—
—
—
—
—
—
—
—
—
Power
ON
(5) CR setting
1
0
1
0
X
X
X
X
CR
(1) Detect timing setting
1
0
1
0
0
1
0
0
CR
(2) STR monitoring
(when not detected)
1
1
1
1
1
0
0
0
STR
(3) STR monitoring
(when detected)
1
1
1
1
0
0
0
1
STR
(4) DTMF receive data
reading
0
1
0
1
X
X
X
X
DTMFR
(5) STR monitoring
(when detected and
after reading STR)
1
1
1
1
0
0
0
0
STR
DTMF
Detect
(High
Speed)
(6) STR monitoring
(after making the input
signal OFF)
1
1
1
1
1
0
0
0
STR
(1) CPT detect enable
setting
1
0
1
0
0
0
1
0
CR
(2) STR monitoring
(when not detected)
1
1
1
1
1
0
0
0
STR
(3) STR monitoring
(when detected)
1
1
1
1
1
0
1
1
STR
CPT
Detect
(4) STR monitoring
(when detected and
after reading STR)
1
1
1
1
1
0
1
0
STR
(1) DTMF transmit data
setting
0
0
0
0
X
X
X
X
DTMFT
(2) DTMF transmit ON
1
0
1
0
0
0
0
1
CR
(3) Wait transmit ON time
—
—
—
—
—
—
—
—
—
(4) DTMF transmit OFF
1
0
1
0
0
0
0
0
CR
(5) Wait transmit OFF time
—
—
—
—
—
—
—
—
—
DTMF
Transmit
(6) To transmit next data,
return to (1)
—
—
—
—
—
—
—
—
—
(1) CPT transmit ON
1
0
1
0
1
0
0
0
CR
(2) Wait transmit ON time
—
—
—
—
—
—
—
—
—
CPT
Transmit
(3) CPT transmit OFF
1
0
1
0
0
0
0
0
CR



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