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参数资料
| 型号： | M32172F2VFP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, FLASH, 40 MHz, RISC MICROCONTROLLER, PQFP144 |
| 封装： | 20 X 20 MM, PLASTIC, LQFP-144 |
| 文件页数： | 9/40页 |
| 文件大小： | 3556K |
| 代理商： | M32172F2VFP |
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CHAPTER 19 RAM BACKUP MODE
19.1 Outline ................................................................................................................. 19-2
19.2 Example of RAM Backup when Power is Down .................................................. 19-2
19.2.1 Normal Operating State .................................................................... 19-3
19.2.2 RAM Backup State ........................................................................... 19-4
19.3 Example of RAM Backup for Saving Power Consumption .................................. 19-5
19.3.1 Normal Operating State .................................................................... 19-6
19.3.2 RAM Backup State ........................................................................... 19-7
19.3.3 Precautions to Be Observed at Power-on ........................................ 19-8
19.4 Exiting RAM Backup Mode (Wakeup) ................................................................. 19-9
CHAPTER 20 OSCILLATION CIRCUIT
20.1 Oscillator Circuit ................................................................................................... 20-2
20.1.1 Example of an Oscillator Circuit ........................................................... 20-2
20.1.2 System Clock Output Function ............................................................. 20-3
20.1.3 Oscillation Stabilization Time at Power-on ........................................... 20-4
20.2 Clock Generator Circuit ....................................................................................... 20-5
CHAPTER 21 JTAG
21.1 Outline of the JTAG ............................................................................................. 21-2
21.2 Configuration of the JTAG Circuit ........................................................................ 21-3
21.3 JTAG Registers ................................................................................................... 21-4
21.3.1 Instruction Register (JTAGIR) .......................................................... 21-4
21.3.2 Data Registers .................................................................................. 21-5
21.4 Basic Operation of the JTAG ............................................................................... 21-6
21.4.1 Outline of the JTAG Operation ......................................................... 21-6
21.4.2 IR Path Sequence ............................................................................ 21-8
21.4.3 DR Path Sequence ........................................................................... 21-10
21.4.4 Examining and Setting Data Registers ............................................. 21-12
21.5 Boundary Scan Description Language ................................................................ 21-14
21.6 Precautions on Board Design when Connecting the JTAG ................................. 21-37
21.7 Processing Pins when Not Using the JTAG ........................................................ 21-39
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