Information

SIM_FCFG2 field descriptions (continued)
Field Description
For devices without FlexNVM: This bit is always set.
0 For devices with FlexNVM: Physical flash block 1 is used as FlexNVM
For devices without FlexNVM: Reserved
1 Physical flash block 1 is used as program flash
22
Reserved
This read-only field is reserved and always has the value zero.
21–16
MAXADDR1
Max address block 1
For devices with FlexNVM: This field concatenated with 13 zeros plus the FlexNVM base address
indicates the first invalid address of the FlexNVM (flash block 1).
For example, if MAXADDR1 = 0x20 the first invalid address of flash block 1 is 0x4_0000 + 0x1000_0000 .
This would be the MAXADDR1 value for a device with 256 KB FlexNVM.
For devices with program flash only: This field concatenated with 13 zeros plus the value of the
MAXADDR1 field indicates the first invalid address of the second program flash block (flash block 1).
For example, if MAXADDR0 = MAXADDR1 = 0x20 the first invalid address of flash block 1 is 0x4_0000 +
0x4_0000. This would be the MAXADDR1 value for a device with 512 KB program flash memory and no
FlexNVM.
15–0
Reserved
This read-only field is reserved and always has the value zero.
12.2.19 Unique Identification Register High (SIM_UIDH)
Address: SIM_UIDH is 4004_7000h base + 1054h offset = 4004_8054h
Bit 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
R
UID
W
Reset
x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x* x*
* Notes:
x = Undefined at reset.•
SIM_UIDH field descriptions
Field Description
31–0
UID
Unique Identification
Unique identification for the device.
Chapter 12 System integration module (SIM)
K10 Sub-Family Reference Manual, Rev. 6, Nov 2011
Freescale Semiconductor, Inc. 285