S3C821A - Samsung semiconductor

S3C821A S3C8-SERIES MICROCONTROLLES

Table 1-1. S3C821A Pin Descriptions Pin Names P0.0–P0.7 Pin Type I/O Pin Description 4-bit-programmable I/O port. Pull-up resistors and open-drain outputs are software assignable. Pull-up resistors are automatically disabled for output pins. Configurable as LCD segments/ external interface address and data lines 4-bit-programmable I/O port. Pull-up resistor.

Features

are: — Efficient register-oriented architecture — Selectable CPU clock sources — Idle and Stop power-down mode release by interrupt — Built-in basic timer with watchdog function A sophisticated interrupt structure recognizes up to eight interrupt levels. Each level can have one or more interrupt sources and vectors. Fast interrupt processing (within a minimum of six CPU clocks) can be assigned to specific interrupt levels. S3C821A/P821A MICROCONTROLLER The S3C821A/P821A single-chip CMOS microcontroller is fabricated using the highly advanced CMOS process, based on Samsung’s newest CPU archite.