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MC9S12DP512CPVE Datasheet, PDF (66/124 Pages) Freescale Semiconductor, Inc – MC9S12DP512 Device Guide V01.25
MC9S12DP512 Device Guide V01.25
2.4.7 VREGEN — On Chip Voltage Regulator Enable
Enables the internal 5V to 2.5V voltage regulator. If this pin is tied low, VDD1,2 and VDDPLL must be
supplied externally.