K60P100M100SF2RM Datasheet, PDF (276/1809 Pages) Freescale Semiconductor, Inc – K60 Sub-Family Reference Manual

Memory map and register definition
SIM_SOPT2 field descriptions (continued)
Field
Description
If flash security is enabled, then this field affects what CPU operations can access off-chip via the FlexBus
interface. This field has no effect if flash security is not enabled.
7–1
Reserved
0
MCGCLKSEL
00 All off-chip accesses (instruction and data) via the FlexBus are disallowed.
01 All off-chip accesses (instruction and data) via the FlexBus are disallowed.
10 Off-chip instruction accesses are disallowed. Data accesses are allowed.
11 Off-chip instruction accesses and data accesses are allowed.
This read-only field is reserved and always has the value zero.
MCG clock select
Selects the MCG's external reference clock.
0 System oscillator (OSCCLK)
1 32 kHz RTC oscillator
12.2.3 System Options Register 4 (SIM_SOPT4)
Address: SIM_SOPT4 is 4004_7000h base + 100Ch offset = 4004_800Ch
Bit 31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
R
0
0
0
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
0
0
0
W
Reset 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
SIM_SOPT4 field descriptions
Field
31–27
Reserved
26
FTM2CLKSEL
Description
This read-only field is reserved and always has the value zero.
FlexTimer 2 External Clock Pin Select
Selects the external pin used to drive the clock to the FTM2 module.
Table continues on the next page...
K60 Sub-Family Reference Manual, Rev. 6, Nov 2011
276
Freescale Semiconductor, Inc.