352
DTLR—DTMF load register
H'B3
DTMF generator
Bit
Initial value
Read/Write
7
—
1
—
6
—
1
—
5
—
1
—
4
DTL4
0
R/W
3
DTL3
0
R/W
0
DTL0
0
R/W
2
DTL2
0
R/W
1
DTL1
0
R/W
OSC clock division ratio 4 to 0
DTL3
0
0
0
0
0
1
1
1
Division Ratio
Illegal setting
Illegal setting
Illegal setting
3
4
25
Illegal setting
Illegal setting
DTL4
0
0
0
0
0
1
1
1
DTL2
0
0
0
0
1
0
0
1
DTL1
0
0
1
1
0
0
1
DTL0
0
1
0
1
0
1
…
…
…
…
…
OSC Clock Frequency
1.2 MHz
1.6 MHz
10 MHz
…
*
*
*
(initial value)
*
Note: Don’t care
…