SIM_CLKDIV1 field descriptions (continued)
Field
Description
1001
Divide-by-10.
1010
Divide-by-11.
1011
Divide-by-12.
1100
Divide-by-13.
1101
Divide-by-14.
1110
Divide-by-15.
1111
Divide-by-16.
15–0
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
12.2.14 System Clock Divider Register 2 (SIM_CLKDIV2)
Address: 4004_7000h base + 1048h offset = 4004_8048h
Bit
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
R
W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
R
W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
SIM_CLKDIV2 field descriptions
Field
Description
31–4
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
3–1
USBDIV
USB clock divider divisor
This field sets the divide value for the fractional clock divider when the MCGFLLCLK, or MCGPLLCLK, or
IRC48M clock is the USB clock source (SOPT2[USBSRC] = 1).
Divider output clock = Divider input clock × [ (1) / (1) ]
0
USBFRAC
USB clock divider fraction
This field sets the fraction multiply value for the fractional clock divider when the MCGFLLCLK, or
MCGPLLCLK, or IRC48M clock is the USB clock source (SOPT2[USBSRC] = 1).
Divider output clock = Divider input clock × [ (1) / (1) ]
Chapter 12 System Integration Module (SIM)
K22F Sub-Family Reference Manual , Rev. 3, 7/2014
Freescale Semiconductor, Inc.
273