mc68hc08qa24 Freescale Semiconductor, Inc, mc68hc08qa24 Datasheet - Page 356

• Manufacturer Part Number: mc68hc08qa24
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

CAN Controller
22.11 Clock System
Technical Data
354
CGM
MSCAN08
OSC
÷ 2
After timer n has been programmed to capture rising edge events, it can
be used to generate 16-bit time stamps which can be stored under
software control with the received message.
Figure 22-7
circuitry and its interaction with the clock generation module (CGM).
With this flexible clocking scheme the MSCAN08 is able to handle CAN
bus rates ranging from 10 kbps up to 1 Mbps.
Figure 22-7. Clocking Scheme
CGMXCLK
PLL
CLKSRC
shows the structure of the MSCAN08 clock generation
CAN Controller
÷ 2
÷ 2
PRESCALER
(1–64)
(2 * BUS FREQUENCY)
BCS
Freescale Semiconductor
MC68HC08QA24
MSCANCLK
CGMOUT
(to SIM)