mg84fl54 Megawin Technology, mg84fl54 Datasheet - Page 4

• Manufacturer Part Number: mg84fl54
• Description: Full-speed Usb Micro-controller
• Manufacturer: Megawin Technology

13. Interrupt ...................................................................................................... 50
14. Keypad Interrupt ......................................................................................... 58
15. Power Management.................................................................................... 59
16. Serial Peripheral Interface (SPI) ................................................................. 62
17. 2-wire Serial Interface (TWSI)..................................................................... 71
4
12.1. Mode 0...................................................................................................................40
12.2. Mode 1...................................................................................................................42
12.3. Mode 2 and Mode 3...............................................................................................43
12.4. Frame Error Detection ...........................................................................................43
12.5. Multiprocessor Communications............................................................................ 44
12.6. Automatic Address Recognition.............................................................................44
12.7. Baud Rate Setting.................................................................................................. 46
12.8. Serial Port Register................................................................................................47
13.1. Interrupt Source .....................................................................................................50
13.2. Interrupt Structure..................................................................................................52
13.3. How Interrupts are Handled ................................................................................... 52
13.4. Interrupt Register ...................................................................................................54
13.5. Interrupt Priority .....................................................................................................55
13.6. Note on Interrupt during ISP/IAP ........................................................................... 57
14.1. Keypad Register .................................................................................................... 58
15.1. Power Saving Mode............................................................................................... 59
15.2. Power Control Register.......................................................................................... 60
15.3. Wake-up from Power-Down................................................................................... 61
16.1. Typical SPI Configurations .................................................................................... 63
16.2. Configuring the SPI................................................................................................ 65
16.3. Data Mode ............................................................................................................. 67
16.4. SPI Register...........................................................................................................69
17.1. The Special Function Registers for TWSI.............................................................. 72
17.2. Operating Modes ................................................................................................... 74
12.7.1. Baud Rate in Mode 0.............................................................................................. 46
12.7.2. Baud Rate in Mode 2.............................................................................................. 46
12.7.3. Baud Rate in Mode 1 & 3 ....................................................................................... 46
15.1.1. Idle Mode................................................................................................................ 59
15.1.2. Power-Down Mode ................................................................................................. 59
15.1.3. Power-Down Wake-up Source ............................................................................... 59
15.1.4. Interrupt Recovery from Power-Down Mode .......................................................... 59
15.1.5. Reset Recovery from Power-Down Mode .............................................................. 60
16.1.1. Single Master & Single Slave ................................................................................. 63
16.1.2. Dual Device, where either can be a Master or a Slave .......................................... 63
16.1.3. Single Master & Multiple Slaves ............................................................................. 64
16.2.1. Additional Considerations for a Slave..................................................................... 65
16.2.2. Additional Considerations for a Master................................................................... 65
16.2.3. Mode Change on /SS-pin ....................................................................................... 66
16.2.4. No Write Collision ................................................................................................... 66
16.2.5. SPI Clock Rate Select ............................................................................................ 66
16.3.1. SPI Slave Transfer Format with CPHA=0............................................................... 67
16.3.2. SPI Slave Transfer Format with CPHA=1............................................................... 67
16.3.3. SPI Master Transfer Format with CPHA=0............................................................. 68
16.3.4. SPI Master Transfer Format with CPHA=1............................................................. 68
17.2.1. Master Transmitter Mode ....................................................................................... 74
17.2.2. Master Receiver Mode ........................................................................................... 75
17.2.3. Slave Transmitter Mode ......................................................................................... 75
MG84FL54B Data Sheet
MEGAWIN