Chapter 5 Clocks and Reset Generator (S12CRGV6)
MC9S12XDP512 Data Sheet, Rev. 2.11
278 Freescale Semiconductor
NOTE
Write to this register initializes the lock detector bit and the track detector
bit.
5.3.2.3 Reserved Register (CTFLG)
This register is reserved for factory testing of the MC9S12XDP512 module and is not available in normal
modes.
Read: Always reads 0x_00 in normal modes
Write: Unimplemented in normal modes
NOTE
Writing to this register when in special mode can alter the MC9S12XDP512
fucntionality.
5.3.2.4 CRG Flags Register (CRGFLG)
This register provides CRG status bits and flags.
Read: Anytime
Write: Refer to each bit for individual write conditions
Module Base +0x_02
76543210
R00000000
W
Reset 00000000
= Unimplemented or Reserved
Figure 5-6. Reserved Register (CTFLG)
Module Base +0x_03
76543210
RRTIF PORF LVRF LOCKIF LOCK TRACK SCMIF SCM
W
Reset 0 1200000
1. PORF is set to 1 when a power on reset occurs. Unaffected by system reset.
2. LVRF is set to 1 when a low-voltage reset occurs. Unaffected by system reset.
= Unimplemented or Reserved
Figure 5-7. CRG Flags Register (CRGFLG)