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MC9S12P128 Datasheet, PDF (214/564 Pages) Freescale Semiconductor, Inc – S12 Microcontrollers
S12 Clock, Reset and Power Management Unit (S12CPMU) Block Description
Table 7-9. RTI Frequency Divide Rates for RTDEC = 0
RTR[6:4] =
RTR[3:0]
000
(OFF)
001
(210)
010
(211)
011
(212)
100
(213)
101
(214)
110
(215)
111
(216)
0000 (÷1)
OFF(1)
210
211
212
213
214
215
216
0001 (÷2)
OFF
2x210
2x211
2x212
2x213
2x214
2x215
2x216
0010 (÷3)
OFF
3x210
3x211
3x212
3x213
3x214
3x215
3x216
0011 (÷4)
OFF
4x210
4x211
4x212
4x213
4x214
4x215
4x216
0100 (÷5)
OFF
5x210
5x211
5x212
5x213
5x214
5x215
5x216
0101 (÷6)
OFF
6x210
6x211
6x212
6x213
6x214
6x215
6x216
0110 (÷7)
OFF
7x210
7x211
7x212
7x213
7x214
7x215
7x216
0111 (÷8)
OFF
8x210
8x211
8x212
8x213
8x214
8x215
8x216
1000 (÷9)
OFF
9x210
9x211
9x212
9x213
9x214
9x215
9x216
1001 (÷10)
OFF
10x210
10x211
10x212
10x213
10x214
10x215
10x216
1010 (÷11)
OFF
11x210
11x211
11x212
11x213
11x214
11x215
11x216
1011 (÷12)
OFF
12x210
12x211
12x212
12x213
12x214
12x215
12x216
1100 (÷13)
OFF
13x210
13x211
13x212
13x213
13x214
13x215
13x216
1101 (÷14)
OFF
14x210
14x211
14x212
14x213
14x214
14x215
14x216
1110 (÷15)
OFF
15x210
15x211
15x212
15x213
15x214
15x215
15x216
1111 (÷16)
OFF
16x210
16x211
16x212
16x213
16x214
16x215
16x216
1. Denotes the default value out of reset.This value should be used to disable the RTI to ensure future backwards compatibility.
RTR[3:0]
0000 (÷1)
0001 (÷2)
0010 (÷3)
0011 (÷4)
0100 (÷5)
Table 7-10. RTI Frequency Divide Rates for RTDEC=1
RTR[6:4] =
000
(1x103)
1x103
2x103
3x103
4x103
5x103
001
(2x103)
2x103
4x103
6x103
8x103
10x103
010
(5x103)
5x103
10x103
15x103
20x103
25x103
011
(10x103)
10x103
20x103
30x103
40x103
50x103
100
(20x103)
20x103
40x103
60x103
80x103
100x103
101
(50x103)
50x103
100x103
150x103
200x103
250x103
110
(100x103)
100x103
200x103
300x103
400x103
500x103
111
(200x103)
200x103
400x103
600x103
800x103
1x106
S12P-Family Reference Manual, Rev. 1.12
214
Freescale Semiconductor