Datasheet

Chapter 2 Clocks and Reset Generator (S12CRGV6)
MC9S12XDP512 Data Sheet, Rev. 2.21
96 Freescale Semiconductor
2.3.2.10 Reserved Register (FORBYP)
NOTE
This reserved register is designed for factory test purposes only, and is not
intended for general user access. Writing to this register when in special
modes can alter the CRG’s functionality.
Read: Always read 0x_00 except in special modes
Write: Only in special modes
2.3.2.11 Reserved Register (CTCTL)
NOTE
This reserved register is designed for factory test purposes only, and is not
intended for general user access. Writing to this register when in special test
modes can alter the CRG’s functionality.
Read: always read 0x_80 except in special modes
Write: only in special modes
76543210
R00000000
W
Reset 00000000
= Unimplemented or Reserved
Figure 2-13. Reserved Register (FORBYP)
76543210
R10000000
W
Reset 00000000
= Unimplemented or Reserved
Figure 2-14. Reserved Register (CTCTL)