K60P100M100SF2RM Datasheet, PDF (551/1809 Pages) Freescale Semiconductor, Inc – K60 Sub-Family Reference Manual

Chapter 24 Multipurpose Clock Generator (MCG)
24.3.8 MCG Auto Trim Control Register (MCG_ATC)
Address: MCG_ATC is 4006_4000h base + 8h offset = 4006_4008h
Bit
7
6
5
4
3
2
1
0
Read
ATMF
0
ATME
ATMS
Write
Reset
0
0
0
0
0
0
0
0
MCG_ATC field descriptions
Field
7
ATME
Automatic Trim Machine Enable
Description
Enables the Auto Trim Machine to start automatically trimming the selected Internal Reference Clock.
NOTE: ATME deasserts after the Auto Trim Machine has completed trimming all trim bits of the IRCS
clock selected by the ATMS bit.
Writing to C1, C3, C4, and ATC registers or entering Stop mode aborts the auto trim operation and clears
this bit.
6
ATMS
0 Auto Trim Machine disabled.
1 Auto Trim Machine enabled.
Automatic Trim Machine Select
Selects the IRCS clock for Auto Trim Test.
5
ATMF
0 32 kHz Internal Reference Clock selected.
1 4 MHz Internal Reference Clock selected.
Automatic Trim machine Fail Flag
Fail flag for the Automatic Trim Machine (ATM). This bit asserts when the Automatic Trim Machine is
enabled (ATME=1) and a write to the C1, C3, C4, and ATC registers is detected or the MCG enters into
any Stop mode. A write to ATMF clears the flag.
4–0
Reserved
0 Automatic Trim Machine completed normally.
1 Automatic Trim Machine failed.
This read-only field is reserved and always has the value zero.
24.3.9 MCG Auto Trim Compare Value High Register (MCG_ATCVH)
Address: MCG_ATCVH is 4006_4000h base + Ah offset = 4006_400Ah
Bit
7
6
5
4
3
2
1
0
Read
Write
ATCVH
Reset
0
0
0
0
0
0
0
0
K60 Sub-Family Reference Manual, Rev. 6, Nov 2011
Freescale Semiconductor, Inc.
551