NXP Semiconductors MPC5644A, Reference Manual, Page: 1642 / 1735

Power Management Controller (PMC)
MPC5644A Microcontroller Reference Manual, Rev. 6
1642 Freescale Semiconductor
Table 35-4. TRIMR field descriptions
Field Description
0–11 Reserved, should be cleared
12–15
LVDREGTRIM
LVI 5 V trimming
This field is used to fine tune the voltage threshold of the 5 V rising LVI, which is used to monitor
the VDDREG supply. Nominal configuration:
0111 4.43 V
0110 4.41 V
0101 4.39 V
0100 4.37 V
0011 4.35 V
0010 4.33 V
0001 4.31 V
0000 4.29 V Default.
1111 4.27 V
1110 4.25 V
1101 4.23 V
1100 4.21 V
1011 4.19 V
1010 4.17 V
1001 4.15 V
1000 4.13 V
16–19
VDD33TRIM
VREG 3.3 V trimming
This field is used to fine tune the voltage of the 3.3 V regulator. Nominal configuration:
0111 3.60 V
0110 3.57 V
0101 3.54 V
0100 3.51 V
0011 3.48 V
0010 3.45 V
0001 3.42 V
0000 3.39 V Default.
1111 3.36 V
1110 3.33 V
1101 3.30 V
1100 3.27 V
1011 3.24 V
1010 3.21 V
1001 3.18 V
1000 3.15 V