Samsung S3C9228/P9228, 8-Bit CMOS Microcontroller user manual Cpu

PRODUCT OVERVIEW S3C9228/P9228

FEATURES

CPU

∙SAM88RCRI CPU core

Memory

∙8192 × 8 bits program memory (ROM)

∙264 × 8 bits data memory (RAM) (Including LCD data memory)

Instruction Set

∙41 instructions

∙Idle and Stop instructions added for power-down modes

36 I/O Pins

∙I/O: 34 pins (44-pin QFP, 42-pin SDIP)

∙Output only: 2 pins (44-pin QFP)

Interrupts

∙14 interrupt source and 1 vector

∙One interrupt level

8-Bit Basic Timer

∙Watchdog timer function

∙3 kinds of clock source

Two 8-Bit Timer/Counters

∙The programmable 8-bit timer/counters

∙External event counter function

∙Configurable as one 16-bit timer/counters

Watch Timer

∙Interval time: 3.91mS, 0.25S, 0.5S, and 1S at 32.768 kHz

∙0.5/1/2/4 kHz Selectable buzzer output

∙Clock source generation for LCD

LCD Controller/Driver

∙16 segments and 8 common terminals

∙3, 4, and 8 common selectable

∙Internal resistor circuit for LCD bias

8-bit Serial I/O Interface

∙8-bit transmit/receive mode

∙8-bit receive mode

∙LSB-first or MSB-first transmission selectable

∙Internal or external clock source

A/D Converter

∙10-bit converter resolution

∙50us conversion speed at 1MHz fADC clock

∙4-channel

Two Power-Down Modes

∙Idle: only CPU clock stops

∙Stop: system clock and CPU clock stop

Oscillation Sources

∙Crystal, ceramic, or RC for main clock

∙Main clock frequency: 0.4 MHz - 8MHz

∙32.768 kHz crystal oscillation circuit for sub clock

Instruction Execution Times

∙500nS at 8MHz fx(minimum)

Operating Voltage Range

∙2.0 V to 5.5 V at 0.4 - 4.2MHz

∙2.7 V to 5.5 V at 0.4 - 8MHz

Operating Temperature Range

∙-25 °C to +85 °C

Package Type

∙44-pin QFP, 42-pin SDIP

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