mc9s08jm16 Freescale Semiconductor, Inc, mc9s08jm16 Datasheet - Page 21

• Manufacturer Part Number: mc9s08jm16
• Description: S08jm 8-bit Usb Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

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
functions. All memory mapped registers associated with the modules are clocked with BUSCLK.
Freescale Semiconductor
EXTAL
1. The FFCLK is internally synchronized to the bus clock and must not exceed one half of the bus clock frequency.
2. ADC has min. and max. frequency requirements. See
Characteristics,” for details.
3. Flash has frequency requirements for program and erase operation. See
XOSC
1 kHz
MCG
LPO
XTAL
System Clock Distribution
lists the functional versions of the on-chip modules.
shows a simplified clock connection diagram. Some modules in the MCU have selectable clock
MCGFFCLK
LPO clock
MCGERCLK
MCGIRCLK
MCGOUT
MCGLCLK
USB
RAM
÷
÷
Analog Comparator
Analog-to-Digital Converter
Central Processing Unit
IIC Module
Keyboard Interrupt
Multi-Purpose Clock Generator
Real-Time Counter
Serial Communications Interface
8-/16-bit Serial Peripheral Interface
Timer Pulse-Width Modulator
Universal Serial Bus
Debug Module
2
2
USB
BUSCLK
Figure 1-2. System Clock Distribution Diagram
RTC
Table 1-2. Versions of On-Chip Modules
CPU
MC9S08JM16 Series Data Sheet, Rev. 2
COP
TPMCLK
Chapter 10, “Analog-to-Digital Converter
Module
BDC
TPM1
FFCLK
Appendix A, “Electrical
1
TPM2
(ACMP)
(ADC)
(CPU)
(IIC)
(KBI)
(MCG)
(RTC)
(SCI)
(SPI16)
(TPM)
(USB)
(DBG)
IIC
(S08ADC12V1),” and
Characteristics,” for details.
Version
ADC
SCI1
2
1
2
2
2
1
1
4
1
3
1
2
2
RAM
SCI2
Chapter 1 Device Overview
Appendix A, “Electrical
FLASH
SPI1
3
SPI1
21