MC9S12XD256CAL Datasheet, PDF (888/1348 Pages) Freescale Semiconductor, Inc – This specification describes the function of the clocks and reset generator (CRG).

Chapter 22 DP512 Port Integration Module (S12XDP512PIMV2)
• Power consumption will increase the more the voltages on general purpose input pins deviate from
the supply voltages towards mid-range because the digital input buffers operate in the linear region.
MC9S12XDP512 Data Sheet, Rev. 2.21
890
Freescale Semiconductor