S912XHZ512F1VAG Datasheet, PDF (727/978 Pages) Freescale Semiconductor, Inc – Covers MC9S12XHZ384, MC9S12XHZ256

V_DDR
V_DDA
V_SSA
LVD
Chapter 20 Voltage Regulator (S12VREG3V3V5)
REG2
REG1
VBG
LVR
LVR
POR
V_DDPLL
V_SSPLL
V_DD
POR
V_SS
V_REGEN
Bus Clock
CTRL
API
Rate
Select
LVI
API
API
LVD: Low-Voltage Detect
LVR: Low-Voltage Reset
POR: Power-On Reset
REG: Regulator Core
CTRL: Regulator Control
API: Auto. Periodical Interrupt
PIN
Figure 20-1. VREG_3V3 Block Diagram
MC9S12XHZ512 Data Sheet, Rev. 1.06
Freescale Semiconductor
727