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ASIC4 or ASIC5 ASIC4 ROM Chips 1x 512KB

EPOC16 Processes and Their Properties

EPOC16 is a preemptive multitasking operating system; at any time it can be running any number of...

SIBO ASICs

ASIC stands for Application Specific Integrated Circuit. These devices are widely used within Psi...

SIBO Devices and On-Board ASICs

Here is a list of the SIBO ASICs that can be found on board every SIBO machine. Name ASIC...

SSD Pins

Facing pins, front of SSD upwards. Pin Name Description Characteristics 1 CLK...

Format of Flash and ROM SSD cards

Introduction This document describes information about the structure of existing types of Flash ...

Psion Word File Format

Word files can be encrypted with a password. Encryption affects only the header and data record t...

Solid State Disks (Data Packs)

This page is unfinished. Flash SSDs Circuitry On-board voltage regulator LM317, taking VPP and...

Psion Agenda File Format

Series 3t Agenda files are normal database files (see Psionics file DBF.FMT). Each record holds ...

Filesystem IO Interfaces

This document is based on FILEIO from The Psionics Files. This document describes the use of the...

Hardware Reference

Version 2.10, February 3, 1995 NOTE: The data in this manual is provided for information only. Y...

EPOC16 Window Server Calls

This file wouldn't have appeared for much longer if it weren't for Dan Ramage, who sent Clive eno...

Device driver interfaces

This document describes all known functions for all known device drivers. It does not include fil...

EPOC16 System Calls

Introduction The Psion System 3 operating system offers a large number of system calls. A syste...

EPOC16 Environment Variables

EPOC16 always places a dollar sign ($) in the names of the environment variable it uses. Other ap...

SIBO-SP Slave IDs

  "Select" is kind of a misnomer, because in actual fact it's a question. The SIBO/EPOC16 device...

EPOC16 Locale Codes

Psion allocated a number for each locale. This number is often used as part of a file name; for e...

EPOC16 Kernel memory organisation

This document is incomplete. Questionable sections are marked with an at (@) symbol. Kernel memo...