K60P100M100SF2RM Datasheet, PDF (272/1809 Pages) Freescale Semiconductor, Inc – K60 Sub-Family Reference Manual

Memory map and register definition
12.2.1 System Options Register 1 (SIM_SOPT1)
The reset value of the SOPT1 register is as follows: Exit from POR and LVD:
USBREGEN is set, USBSTBY is cleared, and OSC32KSEL is cleared. Exit from VLLS
or other system reset: USBREGEN, USBSTBY and OSC32KSEL are unaffected
Address: SIM_SOPT1 is 4004_7000h base + 0h offset = 4004_7000h
Bit 31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
R
0
MS
0
0
Reserved
W
Reset x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x*
Bit 15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
R
RAMSIZE
0
W
Reset x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x*
* Notes:
• x = Undefined at reset.
Field
31
USBREGEN
30
USBSTBY
29–27
Reserved
26–24
Reserved
23
MS
SIM_SOPT1 field descriptions
USB voltage regulator enable
Description
Controls whether the USB voltage regulator is enabled.
0 USB voltage regulator is disabled.
1 USB voltage regulator is enabled.
USB voltage regulator in standby mode
Controls whether the USB voltage regulator is placed in standby mode.
0 USB voltage regulator not in standby.
1 USB voltage regulator in standby.
This field is reserved.
This read-only field is reserved and always has the value zero.
EzPort chip select pin state
Reflects the state of the EzPort chip select (EZP_CS) pin during the last reset. This bit is read-only.
Table continues on the next page...
K60 Sub-Family Reference Manual, Rev. 6, Nov 2011
272
Freescale Semiconductor, Inc.