SC9RS08KA2 datasheet(3/134 Pages) FREESCALE

3 / 134 page

8-Bit RS08 Central Processor Unit (CPU)

•

Simplified S08 instruction set with added

high-performance instructions

— LDA, STA, and CLR instructions

support the short addressing mode;

address $0000 to $001F can be

accessed via a single-byte instruction

— ADD, SUB, INC, and DEC instructions

support the tiny addressing mode;

address $0000 to $000F can be

accessed via a single-byte instruction

with reduced instruction cycle

— Shadow PC register instructions: SHA

and SLA

•

Pending interrupt indication

•

Index addressing via D[X] and X register

•

Direct page access to the entire memory

map through paging window

Memory

•

On-chip Flash EEPROM

— SC9RS08KA2: 2048 bytes

— SC9RS08KA1: 1024 bytes

•

63 bytes on-chip RAM

Power-Saving Modes

•

Wait and stop

•

Wakeup from power-saving modes using

real-time interrupt (RTI), KBI, or ACMP

Clock Source

•

ICS — Trimmable 20-MHz internal clock

source

— Up to 10-MHz internal bus operation

— 0.2% trimmable resolution, 2%

deviation over temperature and voltage

range

System Protection

•

Computer operating properly (COP) reset

running off bus-independent clock source

•

Low-voltage detection with reset or stop

wakeup

Peripherals

•

MTIM — 8-bit modulo timer

•

ACMP — Analog comparator

— Full rail-to-rail supply operation

— Option to compare to fixed internal

bandgap reference voltage

— Can operate in stop mode

•

KBI — Keyboard interrupt ports

— Three KBI ports in 6-pin package

— Five KBI ports in 8-pin package

Development Support

•

Background debug system

•

Breakpoint capability to allow single

breakpoint setting during in-circuit debug

Package Options

•

6-pin dual flat no lead (DFN) package

— Two general-purpose input/output (I/O)

pins

— One general-purpose input pin

— One general-purpose output pin

•

8-pin plastic dual in-line pin (PDIP)

package

— Four general-purpose input/output

(I/O) pins

— One general-purpose input pin

— One general-purpose output pin

•

8-pin narrow body SOIC package

— Four general-purpose input/output

(I/O) pins

— One general-purpose input pin

— One general-purpose output pin

SC9RS08KA2 Features

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