
Chapter 4 384 KByte Flash Module (S12XFTM384K2V1)
MC9S12XF - Family Reference Manual, Rev.1.19
144
Freescale Semiconductor
Table 4-9. FDIV vs OSCCLK Frequency
OSCCLK Frequency
(MHz)
FDIV[6:0]
OSCCLK Frequency
(MHz)
FDIV[6:0]
OSCCLK Frequency
(MHz)
FDIV[6:0]
MIN(1)
1. FDIV shown generates an FCLK frequency of >0.8 MHz
MAX(2)
33.60
34.65
0x20
67.20
68.25
0x40
1.60
2.10
0x01
34.65
35.70
0x21
68.25
69.30
0x41
2.40
3.15
0x02
35.70
36.75
0x22
69.30
70.35
0x42
3.20
4.20
0x03
36.75
37.80
0x23
70.35
71.40
0x43
4.20
5.25
0x04
37.80
38.85
0x24
71.40
72.45
0x44
5.25
6.30
0x05
38.85
39.90
0x25
72.45
73.50
0x45
6.30
7.35
0x06
39.90
40.95
0x26
73.50
74.55
0x46
7.35
8.40
0x07
40.95
42.00
0x27
74.55
75.60
0x47
8.40
9.45
0x08
42.00
43.05
0x28
75.60
76.65
0x48
9.45
10.50
0x09
43.05
44.10
0x29
76.65
77.70
0x49
10.50
11.55
0x0A
44.10
45.15
0x2A
77.70
78.75
0x4A
11.55
12.60
0x0B
45.15
46.20
0x2B
78.75
79.80
0x4B
12.60
13.65
0x0C
46.20
47.25
0x2C
79.80
80.85
0x4C
13.65
14.70
0x0D
47.25
48.30
0x2D
80.85
81.90
0x4D
14.70
15.75
0x0E
48.30
49.35
0x2E
81.90
82.95
0x4E
15.75
16.80
0x0F
49.35
50.40
0x2F
82.95
84.00
0x4F
16.80
17.85
0x10
50.40
51.45
0x30
84.00
85.05
0x50
17.85
18.90
0x11
51.45
52.50
0x31
85.05
86.10
0x51
18.90
19.95
0x12
52.50
53.55
0x32
86.10
87.15
0x52
19.95
21.00
0x13
53.55
54.60
0x33
87.15
88.20
0x53
21.00
22.05
0x14
54.60
55.65
0x34
88.20
89.25
0x54
22.05
23.10
0x15
55.65
56.70
0x35
89.25
90.30
0x55
23.10
24.15
0x16
56.70
57.75
0x36
90.30
91.35
0x56
24.15
25.20
0x17
57.75
58.80
0x37
91.35
92.40
0x57
25.20
26.25
0x18
58.80
59.85
0x38
92.40
93.45
0x58
26.25
27.30
0x19
59.85
60.90
0x39
93.45
94.50
0x59
27.30
28.35
0x1A
60.90
61.95
0x3A
94.50
95.55
0x5A
28.35
29.40
0x1B
61.95
63.00
0x3B
95.55
96.60
0x5B
29.40
30.45
0x1C
63.00
64.05
0x3C
96.60
97.65
0x5C
30.45
31.50
0x1D
64.05
65.10
0x3D
97.65
98.70
0x5D
31.50
32.55
0x1E
65.10
66.15
0x3E
98.70
99.75
0x5E
32.55
33.60
0x1F
66.15
67.20
0x3F
99.75
100.80
0x5F