Freescale公司的MC9S08JM16是低成本高性能的HCS08系列MCU.CPU工作頻率48MHz,內(nèi)部總線頻率24MHz,16KB在電路可編程的閃存,1KBRAM以及256BUSBRAM.外設(shè)包括有USB,ADC,ACMP,SCI,SPI,IIC,定時器,KBI和RTC等.廣泛應用在PC外設(shè)和I/O模塊,照明控制系統(tǒng),測試和測量設(shè)備,條形碼掃描系統(tǒng),病人監(jiān)視系統(tǒng),工業(yè)網(wǎng)絡(luò)設(shè)備和POS打印機等.本文介紹了MC9S08JM16系列的主要特性,方框圖,基本系統(tǒng)連接圖以及S08JM16評估板主要特性,詳細電路圖和采用S08JM16
Freescale公司的MC9S08JM
16是低成本高性能的HCS08
系列MCU.
CPU工作頻率
48MHz,內(nèi)部總線頻率
24MHz,16KB在電路可編程的閃存,1KB RAM以及
256B
USBRAM.外設(shè)包括有USB,
ADC, ACMP, SCI, SPI, IIC, 定時器,KBI和
RTC等.廣泛應用在PC外設(shè)和I/O
模塊,照明控制系統(tǒng),測試和測量設(shè)備,條形碼掃描系統(tǒng),病人監(jiān)視系統(tǒng),工業(yè)網(wǎng)絡(luò)設(shè)備和
POS打印機等.本文介紹了MC9S08JM16系列的主要特性,方框圖,基本系統(tǒng)連接圖以及S08JM16評估板主要特性,詳細電路圖和采用S08JM16的血糖監(jiān)視儀方框圖和所用的主要元器件.
MC9S08JM16 series MCUs are members of the low-cost, high-performance HCS08 family of 8-bit microc
ontroller units (MCUs). All MCUs in the family use the enhanced HCS08 core and are available with a variety of modules, memory sizes, memory types, and package types.
MC9S08JM16系列主要特性:
8-Bit HCS08 Central Processor Unit (CPU)
• 48 MHz HCS08 CPU (central processor unit)
• 24 MHz internal bus frequency
• HC08 instruction
setwith added BGND instruction
• Background debugging system
• Breakpoint capability to allow single breakpoint setting during in-circuit debugging (plus two more breakpoints in on-chip debug module)
• In-circuit emulator (
ICE) debug module containing two comparators and nine trigger modes. Eight deep FIFO for storing change-of-flow addresses and event-only data. Debug module supports both tag and force breakpoints
• Support for up to 32 interrupt/reset sources
Memory Options
• Up to 16 KB of on-chip in-circuit programmable fl
ash memory with block protection and security options
• Up to 1 KB of on-chip RAM
• 256 bytes of USB RAM
Clock Source Options
• Clock source options include crystal, resonator, external clock
• MCG (multi-purpose clock generator) — PLL and FLL; internal reference clock with trim adjustment
System Protection
• Optional co
mputer operating properly (
COP) reset with
