R1122I Datasheet, PDF (2/5 Pages) RDC Semiconductor – 16-BIT RISC MICROCONTROLLER

RDC®
RISC DSP Communication
1. Features
l Five-stages pipeline
l RISC architecture
l Static Design & Synthesizable design
l Integrate PLL(*1~*8)
l Maximum frequency is 40MHz, External bus,
Internal bus and core are in the same clock base
l Bus interface
- Multiplexed address and Data bus
- Supports direct address bus [A19: A0]
- 8-bit or 16-bit external bus dynamic access
- 1M byte memory address space
- 64K byte I/O space
l Software is compatible with generic 80C186
microprocessor
l Support two Asynchronous serial channels with
hardware handshaking signals.
l Support CPU ID
l Supports 32 PIO pins
R1122I
16-BIT RISC MICROCONTROLLER
l Support 64kx16, 128kx16, 256kx16 EDO or FP DRAM
with auto-refresh control
l Three independent 16-bit timers and one independent
programmable watchdog timer
lThe Interrupt controller with seven maskable
external interrupts and one non-maskable external
interrupt(NMI)
l Two independent DMA channels
l The I/O pin output is 3.3 volt level and the input
is 3.3 volt to 5 volt tolerance
l 3.3V operation voltage
l Programmable chip-select logic for Memory or
I/O bus cycle decoder
l Programmable wait-state generator
l Boot ROM bus size with 8-bit or 16-bit
l A green product
l Package Type
- PQFP100 pins & LQFP100 pins
Specifications subject to change without notice, contact your sales representatives for the most update information.
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REV 1.0 Jun.13 2006