MC9RS08KA2FS Datasheet, PDF (1/2 Pages) Freescale Semiconductor, Inc – 8-bit Microcontrollers

8-bit Microcontrollers
MC9RS08KA2/1
Fact sheet
Applications
• High-brightness LED
• Lighting systems
control
• Toys
• Small handheld
devices
• Space-constrained
applications
• Small appliances
• AC line voltage
monitoring
• Simple logic
replacement
• Analog driver
replacement
• ASIC replacement
Overview
The MC9RS08KA2 extends the advantages
of Freescale Semiconductor’s 8-bit
microcontrollers into the ultra low-end
marketplace. Based on the RS08 reduced
instruction set architecture, the cost-
effective KA2, in either 6- or 8-pin packaging,
features more flash memory than its nearest
competitor plus a wide range of operating
voltages to efficiently power all kinds of
consumer goods, from children’s toys and
electronic toothbrushes to speakers and
lighting systems.
Simple implementation and ease of integration
can help even novice designers cut the design
cycle down from several months to just a
few weeks. Through Freescale’s extensive
support ecosystem that includes Fast Track™
services, designers have online access to
hardware and software development tools,
training modules, a quick-start guide and a
broad number of design examples to help
launch new products faster.
The KA2 pushes the boundary of Freescale’s
existing low-end 8-bit portfolio and brings
new opportunities to life.
RS08 Core
63B RAM
ICS
Analog Comparator
KBI
SIM
BDC
COP
1 KB/2 KB Flash
8-bit MTIM
Features
8-bit RS08 Central Processor Unit (CPU)
• Up to 10 MHz (bus frequency) RS08 CPU at 1.8V for
100 ns minimum instruction time
• RS08 instruction set—a subset of the powerful HC08
instruction set
• Supports tiny/short address mode
• Index addressing scheme through memory mapped
registers X and D[X] within the tiny address range
• 14B code-efficient RAM
• X and D[X] mapped within code-efficient tiny
address space
• 16B code-efficient peripheral register space
• Page window
• Simplified interrupt mechanism
• Subroutine call/return mechanism
Integrated Third-Generation Flash
• Extremely fast, byte-writable programming—up to
20 µs/byte
• Offers 1 KB write/erase cycles minimum over
temperature
Benefits
• Offers high performance for applications operated by
battery—even at low voltage
• Provides source code compatibility with 68HC05/
68HC08/S08
• Allows easier code debugging through additional
BGND instruction
• Offers direct access to the shadow PC register through
additional SHA and SLA instructions
• Allows single-byte instructions for the most frequently
used operations, including INC, DEC, ADD, SUB, LDA,
STA and CLR
• Offers optimized coding efficiency and code density
• Allows emulation for HC08/S08-style zero-offset index
addressing mode instructions
• Performs index addressing through X and D[X] registers
with all direct, tiny and short addressing instructions
capable of operating on/with X and D[X] registers
• Extends addressing to the entire memory space through
the paging scheme
• Enables direct access to the code-efficient RAM through
single-byte tiny/short address mode instructions
• Provides code-efficient access to most frequently
accessed peripherals within the short addressing space
• Enables most frequently used variables and software
flags to optimize coding efficiency
• Provides access to entire 16 KB through 256 pages
of 64B
• Helps eliminate hardware overhead for the vector
lookup and the stacking mechanism
• Provides short wake-up latency for WAIT/STOP
• SHA/SLA instructions enable multilevel software
stacking implementation
• Allows single level of subroutine call through hardware
stacking with a shadow PC register
• Allows fast jump to subroutine (JSR/BSR) and return
from subroutine (RTS) operation
• Helps reduce production programming costs through
ultra-fast programming
• Helps lower system power consumption from
shorter writes
• Allows electrically erasable nonvolatile memory to help
reduce firmware development cycle