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CR16MES944V8
Family of CompactRISC 16-Bit Microcontrollers
December 2001
CR16MES5/CR16MES9/CR16MFS5/CR16MFS9/
CR16MHS5/CR16MHS9/CR16MNS5/CR16MNS9/
CR16M9S5/CR16MUS5/CR16MUS9/
Family of CompactRISC 16-Bit Microcontrollers
1.0 General DescriptionThe family of CompactRISCâ„¢ microcontrollers are gener-
al-purpose 16-bit microcontrollers based on a Reduced In-
struction Set Computer (RISC) architecture. The device
operates as a complete microcomputer with all system tim-
ing, interrupt logic, flash program memory or ROM memo-
ry, RAM, EEPROM data memory, and I/O ports included
on-chip. It is ideally suited to a wide range of embedded
controller applications because of its high performance,
on-chip integrated features and low power consumption,
resulting in decreased system cost.
The family of CompactRISC 16-bit microcontrollers offer
the high performance of a RISC architecture while retain-
ing the advantages of a traditional Complex Instruction Set
Computer (CISC): compact code, on-chip memory and I/O,
and reduced cost. The CPU uses a three-stage instruction
pipeline that allows execution of up to one instruction per
clock cycle, or up to 20 million instructions per second (MI-
PS) at a clock rate of 20 MHz.
CR16B
Core
Core Bus
Peripheral BusClock Generator
Slow Osc
Processing
UnitI/O μWire/SPI A/D
Fast Osc
2 kbyte InterruptControl(ICU)
PeripheralBusController
Power-on-Reset
RAM
48k Flash
Program
Memory
Two Analog
Comparators
Real-Time
Timer
WATCHDOGPower-Save
Management
Two
MFTs
Two
USARTs
640 Bytes
EEPROM
Data
Memory
boot
MIWU
ROM
Block Diagram
