mc9s08dz32 Freescale Semiconductor, Inc, mc9s08dz32 Datasheet - Page 24

• Manufacturer Part Number: mc9s08dz32
• Description: Hcs08 Microcontrollers 8-bit Can Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Chapter 1 Device Overview
Table 1-2
1.3
Figure 1-2
inputs as shown. The clock inputs to the modules indicate the clock(s) that are used to drive the module
function.
The following are the clocks used in this MCU:
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•
•
•
•
•
•
•
•
BUSCLK — The frequency of the bus is always half of MCGOUT.
LPO — Independent 1-kHz clock that can be selected as the source for the COP and RTC modules.
MCGOUT — Primary output of the MCG and is twice the bus frequency.
MCGLCLK — Development tools can select this clock source to speed up BDC communications
in systems where BUSCLK is configured to run at a very slow frequency.
MCGERCLK — External reference clock can be selected as the RTC clock source. It can also be
used as the alternate clock for the ADC and MSCAN.
MCGIRCLK — Internal reference clock can be selected as the RTC clock source.
MCGFFCLK — Fixed frequency clock can be selected as clock source for the TPM1 and TPM2.
TPM1CLK — External input clock source for TPM1.
TPM2CLK — External input clock source for TPM2.
System Clock Distribution
provides the functional version of the on-chip modules.
shows a simplified clock connection diagram. Some modules in the MCU have selectable clock
1
Central Processor Unit
Multi-Purpose Clock Generator
Analog Comparator
Analog-to-Digital Converter
Inter-Integrated Circuit
Freescale’s CAN
Serial Peripheral Interface
Serial Communications Interface
Real-Time Counter
Timer Pulse Width Modulator
Debug Module
3M05C and older masks have TPM version 2.
MC9S08DZ60 Series Data Sheet, Rev. 3
Table 1-2. Module Versions
Module
(CPU)
(MCG)
(ACMP)
(ADC)
(IIC)
(MSCAN)
(SPI)
(SCI)
(RTC)
(TPM)
(DBG)
Version
3
3
1
3
1
2
1
3
4
1
2
1
Freescale Semiconductor