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Details, datasheet, quote on part number:R8822
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| Part: | R8822 |
| Category: | Microcontrollers => 16 bit |
| Description: | Generic Purpose 80186/188 MCU DC-40MHz at 5V Operating Voltage |
| Company: | RDC Semiconductor |
| Datasheet: | Download R8822 datasheet File size : 1019 kB |
| Request For quote: | Find where to buy R8822
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Datasheet text preview:
RDC ®
RISC DSP Controller
R8822
R8822
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:1.5
RDC ®
Contents
RISC DSP Controller
R8822
----------------------------------------------------------------------------------- page 1. Features ------------------------------------------------------------------------- 4 2. Block Diagram ----------------------------------------------------------------- 4 3. Pin Configuration ------------------------------------------------------------- 5 4. Pin Description --------------------------------------------------------------- 8 5. Basic Application System Block ------------------------------------------- 14 6. Read/Write timing Diagram ----------------------------------------------- 16 7. Oscillator Characteristics -------------------------------------------------- 19 8. Execution Unit ---------------------------------------------------------------- 20 8.1 General Register --------------------------------------------------------- 20 8.2 Segment Register --------------------------------------------------------- 20 8.3 Instruction Pointer and Status Flags Register-------------------------- 21 8.4 Address Generation ------------------------------------------------------- 22 9. Peripheral Control Block Register ----------------------------------------- 23 10. Power Save and Power Down---------------------------------------------- 25 11. Reset ---------------------------------------------------------------------------- 28 12. Bus Interface Unit ----------------------------------------------------------- 30 12.1 Memory and I/O Interface ---------------------------------------------- 30 12.2 Data Bus ---------------------------------------------------------------- 30 12.3 Wait States -------------------------------------------------------------- 31 12.4 Bus Hold ---------------------------------------------------------------- 32 12.5 Bus Width --------------------------------------------------------------- 34 13. Chip Select Unit -------------------------------------------------------------- 36 13.1 UCS ---------------------------------------------------------------------- 36 13.2 LCS ---------------------------------------------------------------------- 37 13.3 MCSx -------------------------------------------------------------------- 38 13.4 PCSx --------------------------------------------------------------------- 40 14. Interrupt Controller Unit ------------------------------------------------- 42 14.1 Master Mode and Slave Mode ---------------------------------------- 42 14.2 Interrupt Vector, Type and Priority ---------------------------------- 43 14.3 Interrupt Request ------------------------------------------------------- 44 14.4 Interrupt Acknowledge ------------------------------------------------ 44 14.5 Programming Register ------------------------------------------------- 45
RDC Semiconductor Co. Subject to change without notice 2
Rev:1.5
RDC ®
RISC DSP Controller
R8822
15. DMA Unit --------------------------------------------------------------------- 59 15.1 DMA Operation -------------------------------------------------------- 59 15.2 External Requests-------------------------------------------------------- 64 15.3 Serial Port/DMA Transfer ------------------------------------------- 66 16. Timer Control Unit ---------------------------------------------------------- 67 16.1 Timer/Counter Unit Output Mode ----------------------------------- 71 17. Watchdog Timer ------------------------------------------------------------- 73 18. Asynchronous Serial Port -------------------------------------------------- 75 18.1 Serial Port Flow Control ------------------------------------------- 75 18.1.1 DCE/DTE Protocol------------------------------------------- 75 18.1.2 CTS/RTR Protocol ------------------------------------------- 76 18.2 DMA Transfer to/form a serial port function------------------- 76 18.3 The Asynchronous Modes description --------------------------- 78 19. PIO Unit ---------------------------------------------------------------------- 82 19.1 PIO Multi-Function Pin list Table ----------------------------------- 82 20. DRAM Controller ---------------------------------------------------------- 85 20.1 Controller Features -------------------------------------------------- 85 20.2 DRAM Operation Mode -------------------------------------------- 85 21. Instruction Set Opcodes and Clock Cycle------------------------------- 87 21.1 R8822 Execution Timings -------------------------------------------- 91 22. DC Characteristics----------------------------------------------------------- 93 23. AC Characteristics----------------------------------------------------------- 94 24. Package Information ------------------------------------------------------ 108 25. Revision History------------------------------------------------------------ 110
RDC Semiconductor Co. Subject to change without notice 3
Rev:1.5
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