R8821

RDC® R8821 RISC DSP Communication 16-BIT RISC MICROCONTROLLER 16-BIT RISC MICROCONTROLLER R8821 Brief Sheet Specifications subject to change without notice, contact your sales representatives for the most update information. Page 1 of 5 REV 1.0 Jul.11 2006 RDC® 1. Features l CPU Core R8821 RISC DSP Communication 16-BIT RISC MICROCONTROLLER l Interrupt Controller - The Interrupt controller with seven maskable external interrupts and one non-maskable external interrupt l Programmable Chip-select Logic - Programmable chip-select logic for memory or I/O bus cycle decoder l Programmable Wait-state Generators l Counters/Timers - Three independent 16-bit timers and one independent programmable watchdog timer l Software Compatible with the 80C186 Microprocessor l Operating Voltage Range Core voltage: 5V ± 10% I/O voltage: 5V ± 10% - RDC’s proprietary RISC architecture - Five-stage pipeline - CPU clock speed: 40MHz - Supports CPU ID - Supports 32 PIO pins - Static & synthesizable design l Bus Interface - Multiplexed address and data bus - Supports a non-multiplexed address bus A[19:0] - 8-bit or 16-bit external bus dynamic access l ROM/RAM/DRAM Controller and Addressing Space - 1M-byte memory address space - 64K-byte I/O space - With 8-bit or 16-bit boot ROM bus size - Supports 64Kx16, 128Kx16, 256Kx16 EDO or FP DRAM with auto-refresh control l Two independent DMA channels l Asynchronous Serial Channels - Supports two asynchronous serial channels with hardware handshaking signals l Ambient Temperature: 0 ~ +70°C l Package Type -100-pin PQFP & 100-pin LQFP Specifications subject to change without notice, contact your sales representatives for the most update information. Page 2 of 5 REV 1.0 Jul.11 2006 RDC® R8821 RISC DSP Communication 16-BIT RISC MICROCONTROLLER 2. Block Diagram INT2/INTA0_n INT1/SELECT_n CLKOUTA INT3/INTA1_n/IRQ CLKOUTB INT6-INT4 INT0 NMI TMROUT0 TMROUT1 TMRIN0 TMRIN1 DRQ0 DRQ1 X1 VCC GND X2 Clock and Power Management Interrupt Control Unit Timer Control Unit DMA Unit RST_n LCS_n/ONCE0_n/RAS0_n UCS_n/ONCE1_n MCS0_n MCS1_n/UCAS_n MCS2_n/LCAS_n MCS3_n/RAS1_n PCS5_n/A1 PCS6_n/A2 Chip Select Unit DRAM Control Unit Instruction Queue (64bits) Instruction Decoder Control Signal Micro ROM PIO Unit PIO[31:0] ARDY SRDY S2_n/BWSEL S1_n~S0_n DT/R_n DEN_n HOLD HLDA S6/CLKDIV2_n UZI_n Refresh Control Unit Register File General, Segment, Eflag Register EA / LA Address Asynchronous Serial Port0 RTS0_n/RTR0_n CTS0_n/ENRX0_n TXD0 RXD0 RTS1_n/RTR1_n Bus Interface Unit ALU (Special, Logic, Adder, BSF) Execution Unit Asynchronous Serial Port1 CTS1_n/ENRX1_n TXD1 RXD1 A[19:0](MA[8:0]) AD[15:0] RD_n WHB_n WLB_n WR_n ALE BHE_n/ADEN_n Specifications subject to change without notice, contact your sales representatives for the most update information. Page 3 of 5 REV 1.0 Jul.11 2006 RDC® 3. PQFP 100 pins R8821 RISC DSP Communication 16-BIT RISC MICROCONTROLLER Package Information D 23.20 0.20 0.10 D1 20.00 "A" 0.10 E1 14.00 SEATING PLANE "A" 0.65 BSC E 17.20 0.20 0.10 c 0.25~0.38 3.40 Max. DETAIL A 1.60 REF L1 A2 2.85 0.12 L 0.88 0.15 0.25 DETAIL A 15 TYP 7 TYP UNIT:mm Specifications subject to change without notice, contact your sales representatives for the most update information. Page 4 of 5 REV 1.0 Jul.11 2006 0.25 MIN A1 RDC® R8821 RISC DSP Communication 16-BIT RISC MICROCONTROLLER LQFP 100 pins 16.00 14.00 0.15 0.10 100 76 1 75 0.10 14.00 25 51 26 50 0.127(TYP) 0.50(TYP) Sealing Plane 0.22 0.05 "A" 0.08(MAX) 1.60(MAX) 0.05 0~7 0.05 0.60 1.00(REF) 0.10 Specifications subject to change without notice, contact your sales representatives for the most update information. Page 5 of 5 REV 1.0 Jul.11 2006 0.2S(TYP) GAUGE PLANE 1.40 0.15 UNIT:mm 16.00 0.15