N681622YG Nuvoton Technology Corporation of America, N681622YG Datasheet - Page 101

• Manufacturer Part Number: N681622YG
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of N681622YG

• Lead Free Status / RoHS Status: Supplier Unconfirmed

Addr.
Addr.
0x32
0x31
“ RES ” in the register map means reserved bit(s).
“ RES ” in the register map means reserved bit(s).
Preliminary Datasheet Rev1.0
DTMFCTRL2
DTMFCTRL3
14.6.2. DTMF CONTROL 2
14.6.3. DTMF CONTROL 3
Name
Name
Location
Bit
0
DTMFTC3
DTMF Clear previous received data.
D7
D7
1
1
1
1
1
1
Time constant used for DTMF frequency estimation
697 Hz
770 Hz
852 Hz
941 Hz
Bit Description
D6
D6
DTMFTC2
RES
0
0
1
1
1
1
0x0B hex
0x01 hex
0x04 hex
0x07 hex
1209 Hz
1
4
7
*
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D5
D5
DTMFTC1
RES
0x02 hex
0x05 hex
0x08 hex
0x0A hex
1336 Hz
Column frequency
1
1
0
0
1
1
D4
D4
2
5
8
0
Single Programmable Extended Codec/SLCC
DTMFCLR
Bit Name
DTMFTC0
D3
0x0C hex
0x03 hex
0x06 hex
0x09 hex
D3
1477 Hz
0
1
0
1
0
1
3
6
9
#
D2
Default
D2
DTMFRCVDT
0x0D hex
0x0E hex
0x0F hex
0x00 hex
1633 Hz
Constant
C
D
A
B
Time
0
10
11
12
13
14
15
Bit Value
D1
D1
N681386/87
Clear
DTMFCLR
1
D0
D0
January 2010
Default
Default
0x00
0x00