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Details, datasheet, quote on part number:R8820
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| Part: | R8820 |
| Category: | Microcontrollers => 16 bit |
| Description: | Generic Purpose 80186/188 MCU DC-40MHz at 5V Operating Voltage |
| Company: | RDC Semiconductor |
| Datasheet: | Download R8820 datasheet File size : 997 kB |
| Request For quote: | Find where to buy R8820
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Datasheet text preview:
RDC ®
RISC DSP Controller
R8820
R8820
16-Bit RISC Microcontroller User's Manual
RDC RISC DSP Controller
RDC Semiconductor Co., Ltd http:\\www.rdc.com.tw Tel. 886-3-666-2866 Fax 886-3-563-1498
RDC Semiconductor Co. Subject to change without notice 1
Rev:1.8
RDC ®
Contents
RISC DSP Controller
R8820
---------------------------------------------------------------------------------------- page
1. Features -------------------------------------------------------------------------------- 4 2.Block Diagram -------------------------------------------------------------------------- 4 3. Pin Configuration --------------------------------------------------------------------- 5 4. Pin Description------------------------------------------------------------------------- 8 5. Basic Application System Block & Read/Write timing Diagram ---------- 14 6. Oscillator Characteristics----------------------------------------------------------- 17 7. Execution Unit ------------------------------------------------------------------------ 18 7.1 General Register------------------------------------------------------------------ 18 7.2 Segment Register ----------------------------------------------------------------- 18 7.3 Instruction Pointer and Status Flags Register ------------------------------- 19 7.4 Address Generation -------------------------------------------------------------- 20 8. Peripheral Control Block Register ------------------------------------------------ 21 9. System Clock Block ------------------------------------------------------------------ 23 10. Reset ----------------------------------------------------------------------------------- 24 11. Bus Interface Unit------------------------------------------------------------------- 26 11.1 Memory and I/O Interface ----------------------------------------------------- 26 11.2 Data Bus ------------------------------------------------------------------------- 26 11.3 Wait States ----------------------------------------------------------------------- 27 11.4 Bus Hold ------------------------------------------------------------------------ 28 11.5 Bus Width----------------------------------------------------------------------- 30 12. Chip Select Unit --------------------------------------------------------------------- 31 12.1 UCS ----------------------------------------------------------------------------- 31 12.2 LCS ----------------------------------------------------------------------------- 32 12.3 MCSx --------------------------------------------------------------------------- 33 12.4 PCSx ---------------------------------------------------------------------------- 34 13. Interrupt Controller Unit --------------------------------------------------------- 37 13.1 Master Mode and Slave Mode ------------------------------------------------- 37 13.2 Interrupt Vector, Type and Priority------------------------------------------- 38 13.3 Interrupt Request --------------------------------------------------------------- 39 13.4 Interrupt Acknowledge--------------------------------------------------------- 39 13.5 Programming Register --------------------------------------------------------- 40
RDC Semiconductor Co. Subject to change without notice 2
Rev:1.8
RDC ®
RISC DSP Controller
R8820
14. DMA Unit ---------------------------------------------------------------------------- 53 14.1 DMA Operation ----------------------------------------------------------------- 53 14.2 External Request---------------------------------------------------------------- 59 14.3 Serial Port / DMA Transfer ------------------------------------------------- 61 15. Timer Control Unit ----------------------------------------------------------------- 62 15.1 Timer/Counter Unit Output Mode ------------------------------------------ 66 16. Watchdog Timer ------------------------------------------------------------------- 68 17. Asynchronous Serial Port --------------------------------------------------------- 70 17.1 Serial Port Flow Control --------------------------------------------------- 70 17.1.1 DCE/DTE Protocol ------------------------------------------------ 70 17.1.2 CTS/RTR Protocol -------------------------------------------------- 71 17.2 DMA Transfer to/form a serial port function ------------------------ 71 17.3 The Asynchronous Modes description ---------------------------------- 72 18. PIO Unit ------------------------------------------------------------------------------ 77 18.1 PIO Multi-Function Pin list Table ------------------------------------------- 77 19. PSRAM Control Unit -------------------------------------------------------------- 80 20. Instruction Set Opcodes and Clock Cycle-------------------------------------- 81 20.1 R8820 Execution Timings ---------------------------------------------------- 85 21. DC Characteristics------------------------------------------------------------------ 86 22. AC Characteristics------------------------------------------------------------------ 88 23. Package Information ------------------------------------------------------------- 102 24. Revision History------------------------------------------------------------------- 104
RDC Semiconductor Co. Subject to change without notice 3
Rev:1.8
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