23.9.1 LCM_DMA Configuration Register (DMA_LCM_CFG).........................................................657
23.9.2 LCM_DMA Control Register (DMA_LCM_CR) .....................................................................657
23.9.3 LCM_DMA Status Register (DMA_LCM_STA) ......................................................................657
23.9.4 LCM_DMA transfer total byte register (DMA_LCM_AMT) ...................................................658
23.9.5 LCM_DMA transfer complete byte register (DMA_LCM_DONE) .........................................658
23.9.6 LCM_DMA Send Address Registers (DMA_LCM_TXAx) .....................................................658
23.9.7 LCM_DMA Receive Address Registers (DMA_LCM_RXAx) ................................................658
23.10 Example Routines .............................................................................................................................659
23.10.1 UART1 interrupt mode and computer transceiver test - DMA receive timeout interrupt .......659
23.10.2 UART1 interrupt mode and computer transceiver test - DMA data check ..............................664
24 Enhanced Dual Data Pointer .....................................................................................................................672
24.1 Related special function registers .......................................................................................................672
24.1.1 1st 16-bit Data Pointer Registers (DPTR0) ...............................................................................672
24.1.2 2nd 16-bit Data Pointer Registers (DPTR1) ..............................................................................672
24.1.3 DPTR control register ................................................................................................................672
24.1.4 Data Pointer control register (TA) .............................................................................................673
24.2 Example Routines ...............................................................................................................................674
24.2.1 Example Routine 1 ....................................................................................................................674
24.2.2 Example Routine 2 ....................................................................................................................675
25 MDU16 Hardware 16-bit Multiplier and Divider ...................................................................................677
25.1 Registers Related to MDU16 ..............................................................................................................677
25.1.1 Operand 1 Data Registers (MD0~MD3) ...................................................................................677
25.1.2 Operand 2 Data Registers (MD4~MD5) ...................................................................................677
25.1.3 MDU Mode Control Register (ARCON) ..................................................................................678
25.1.4 MDU Operation Control Register (OPCON) ............................................................................678
29.2 Netizens' application of MDU16 (provide ideas, for reference only) ................................................679
25.3 Example Routines ..............................................................................................................................681
Appendix A STC Emulator User Guide ........................................................................................................682
Appendix B How to Test I/O Ports.................................................................................................................691
Appendix C How to Make the Traditional 8051 MCU EVB Emulatable ...................................................692
Appendix D STC-USB Driver Installation Instructions ..............................................................................694
Appendix E Download Step Demo using USB ..............................................................................................757
Appendix F RS485 Automatic control or I/O port control circuit diagram ...............................................761
Appendix G STC tool instruction manual ....................................................................................................762
G.1 Overview ..............................................................................................................................................762
G.2 System Programmable (ISP) Process Description ...............................................................................762
G.3 USB type online/offline download tool U8W/U8W-Mini ...................................................................763
G.3.1 Install U8W/U8W-Mini driver ..........................................................................................................765
G.3.2 U8W function introduction ...............................................................................................................767
G.3.3 U8W online download instructions ...................................................................................................768
G.3.4 U8W offline download instructions ............................................................................................771
G.3.5 U8W-Mini's function introduction ....................................................................................................779
G.3.6 U8W-Mini online download instructions ...................................................................................780
G.3.7 U8W-Mini offline download instructions ...................................................................................781
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