Voltage Regulator (S12VREGL3V3V1)
MC9S12XHY-Family Reference Manual Rev. 1.01
Freescale Semiconductor
299
Figure 9-1. VREG_3V3 Block Diagram
LVR
LVD
POR
VDDR
VDD
LVI
POR
LVR
CTRL
VSS
VDDPLL
VSSPLL
VREGEN
REG
PIN
VDDA
REG: Regulator Core
CTRL: Regulator Control
LVD: Low Voltage Detect
LVR: Low Voltage Reset
POR: Power-on Reset
HTD: High Temperature Detect
C
HTI
HTD
API
API
API: Auto. Periodical Interrupt
V
BG
API
Rate
Select
Bus Clock
REG2
REG1
REG3
VDDF
VSSA
VDDX
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