mc68hc912d60c Freescale Semiconductor, Inc, mc68hc912d60c Datasheet - Page 146

• Manufacturer Part Number: mc68hc912d60c
• Description: Hc12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Clock Functions
Technical Data
146
VDD
Power-On Detector
EXTALi
Clock Monitor Fail
Limp-Home
13-stage counter
(Clocked by XCLK)
BCSP
Internal reset
SYSCLK
SYSCLK
(Slow EXTALi)
Therefore, if the MCU is powered up without an external clock, limp-
home mode is entered provided the MCU is in a normal mode of
operation.
Figure 11-4. No Clock at Power-On Reset
0 --> 4096
PLLCLK (L.H.)
PLLCLK (Software check of Limp-Home Flag)
Clock Functions
0 --> 4096
EXTALi
(Slow EXTALi)
MC68HC912D60A — Rev. 3.1
Freescale Semiconductor
Reset: BCSP = 0
EXTALi