NXP Semiconductors MPC5644A, Reference Manual, Page: 1643 / 1735

Power Management Controller (PMC)
MPC5644A Microcontroller Reference Manual, Rev. 6
Freescale Semiconductor 1643
20–23
LVD33TRIM
LVI 3.3 V trimming
This field is used to fine tune the voltage threshold of the 3.3 V rising LVI, which is used to monitor
the 3.3 V regulated output and the VDDEH supply. Nominal configuration:
0111 3.23 V
0110 3.21 V
0101 3.19 V
0100 3.17 V
0011 3.15 V
0010 3.13 V
0001 3.11 V
0000 3.09 V Default.
1111 3.07 V
1110 3.05 V
1101 3.03 V
1100 3.01 V
1011 2.99 V
1010 2.97 V
1001 2.95 V
1000 2.93 V
Note: The recommended value for the LVD33TRIM is 0b0011. In the cut 1 device, the register
should be written by software.
24–27
VDDCTRIM
VREG 1.2 V trimming
This field is used to fine tune the voltage of the 1.2 V regulator. Nominal configuration:
0111 1.42 V
0110 1.40 V
0101 1.38 V
0100 1.36 V
0011 1.34 V
0010 1.32 V
0001 1.30 V
0000 1.28 V Default.
1111 1.26 V
1110 1.24 V
1101 1.22 V
1100 1.20 V
1011 1.18 V
1010 1.16 V
1001 1.14 V
1000 1.12 V
Table 35-4. TRIMR field descriptions (continued)
Field Description