mc68hc912dg128 Freescale Semiconductor, Inc, mc68hc912dg128 Datasheet - Page 164

• Manufacturer Part Number: mc68hc912dg128
• Description: M68hc12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Clock Functions
Technical Data
164
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
Freescale Semiconductor, Inc.
0 --> 4096
PLLCLK (L.H.)
For More Information On This Product,
PLLCLK (Software check of Limp-Home Flag)
Go to: www.freescale.com
Clock Functions
0 --> 4096
EXTALi
(Slow EXTALi)
MC68HC912DG128 — Rev 3.0
Reset: BCSP = 0
EXTALi
MOTOROLA