Holtek HT32F12345 User Manual page 13

32-Bit Arm ® Cortex ® -M3 MCU
HT32F12345
Interrupts and Status .................................................................................................................... 441
PDMA Interface ............................................................................................................................. 441
Register Map ..................................................................................................................... 441
Register Descriptions ......................................................................................................... 442
USART Data Register - USRDR .................................................................................................. 442
USART Control Register - USRCR .............................................................................................. 443
USART FIFO Control Register - USRFCR................................................................................... 444
USART Interrupt Enable Register - USRIER ............................................................................... 446
USART Status & Interrupt Flag Register - USRSIFR................................................................... 447
USART Timing Parameter Register - USRTPR ........................................................................... 449
USART IrDA Control Register - IrDACR ...................................................................................... 450
USART RS485 Control Register - RS485CR............................................................................... 451
USART Synchronous Control Register - SYNCR ........................................................................ 452
USART Divider Latch Register - USRDLR................................................................................... 453
USART Test Register - USRTSTR ............................................................................................... 454
22 Universal Asynchronous Receiver Transmitter (UART) ................................ 455
Introduction ........................................................................................................................ 455
Features ............................................................................................................................. 456
Functional Descriptions ..................................................................................................... 456
Serial Data Format ........................................................................................................................ 456
Baud Rate Generation .................................................................................................................. 457
Interrupts and Status .................................................................................................................... 458
PDMA Interface ............................................................................................................................. 459
Register Map ..................................................................................................................... 459
Register Descriptions ......................................................................................................... 460
UART Data Register - URDR ....................................................................................................... 460
UART Control Register - URCR ................................................................................................... 461
UART Interrupt Enable Register - URIER .................................................................................... 462
UART Status & Interrupt Flag Register - URSIFR ....................................................................... 463
UART Divider Latch Register - URDLR ....................................................................................... 465
UART Test Register - URTSTR .................................................................................................... 466
23 USB Device Controller (USB) .......................................................................... 467
Introduction ........................................................................................................................ 467
Features ............................................................................................................................. 467
Functional Descriptions ..................................................................................................... 468
Endpoints ...................................................................................................................................... 468
EP_SRAM ..................................................................................................................................... 468
Serial Interface Engine - SIE ........................................................................................................ 469
Double-Buffering ........................................................................................................................... 469
Suspend Mode and Wake-up ....................................................................................................... 471
Remote Wake-up .......................................................................................................................... 471
Rev. 1.10 13 of 590 November 28, 2018