NXP Semiconductors MPC5606S - Detailed Signal Descriptions

Voltage Regulators and Power Supplies
MPC5606S Microcontroller Reference Manual, Rev. 7
Freescale Semiconductor 1229
40.2.3 Detailed signal descriptions
40.2.3.1 VDDR
VDDR is the 3.3 V to 5 V supply for the voltage regulators and LVD blocks. See the MPC5606S
Microcontroller Data Sheet for details of recommended decoupling capacitance on this pin.
40.2.3.2 VRC
VRC is the 1.2 V regulator output that drives the base of the external NPN ballast transistor.
40.3 Memory map and register definition
40.3.1 Voltage Regulator Control Register (VREG_CTL)
Table 40-1. Voltage regulator external signals
Name Type Voltage Description
VDDR Supply 3.0 V–5.5 V Power Supply for the voltage regulators
VSSR Ground — Ground supply for digital core and voltage regulators
VRC Output — Regulator drive for external NPN transistor base
Table 40-2. Voltage regulator memory map
Address Register Access Reset Value
VREG_BASE + 0x0000 VREG_CTL—Voltage Regulator Control Register R/W 0x00000001
Address Offset: 00h Access: User read/write
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
R 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
W
Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
R 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 5V_LV
D_MA
SK
W
Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
Figure 40-2. Voltage Regulator Control Register (VREG_CTL)