5616

5616 is the Samson ACCess Processor module, abbreviated ACCP. Its product number is ND-324716.

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Introduction

The 5616 is a baby module used in Samson-based ND-5000 systems.

The module contains:

• The access processor
• The ND OctoBus controller

A terminal can be connected to the ACCP console through a plug board at the rear of the card crate. The connection uses RS-232.

From the ACCP command prompt, commands can be entered for:

• Debugging
• Status inspection
• Hardware testing
• System diagnostics

The ND-324716 is a newer version of the earlier ND-324702 ACCP module.

Characteristics

• PCB number: 5616
• Product number: ND-324716
• Module name: Samson ACCess Processor
• Abbreviation: ACCP
• Module type: Baby module
• PCB version: A2
• ECO level: 8
• Release date: 5 January 1990
• PCB size: 197 × 96 mm
• Processor: MC68000 or TS68000
• SRAM capacity: 32 KB
• EPROM capacity: 128 KB
• LEDs: None
• Switches: None

Functions

The module provides two principal functions:

• Access processor functionality
• Control of the ND OctoBus

The access processor provides a console from which service and diagnostic commands can be entered.

The console can be used for:

• Debugging
• Reading system status
• Running tests
• Performing diagnostic operations

System use

The module was used in several ND-5000 system configurations.

• ND-320001, used in ND-5200 systems: first layer of baby modules
• ND-320002, used in ND-5400, ND-5500 and ND-5700 systems: second layer of baby modules
• ND-320003, used in ND-5800 and ND-5900 systems: second layer of baby modules

Memory

Static RAM

The module contains four SRAM devices.

• Device type: TC5565
• Number of devices: 4
• Capacity per device: 8192 × 8 bits
• Total SRAM capacity: 32 KB

EPROM

The module contains two EPROM devices used for microprogram storage.

• Number of devices: 2
• Capacity per device: 65536 × 8 bits
• Total EPROM capacity: 128 KB
• EPROM 51200L
• EPROM 51201L

Chipset

The following components are known to be fitted to PCB 5616.

Processor

• MC68000 or TS68000 — access processor CPU

OctoBus controller

• NDOBCON — Norsk Data OctoBus controller

Programmable logic

• 50600B — PAL
• 50700A — PAL
• 50800A — PAL
• 50900A — PAL
• 51000B — PAL
• 51100C — PAL

Microprogram storage

• 51200L — microprogram EPROM
• 51201L — microprogram EPROM

Static RAM

• TC5565 — SRAM, four devices

Each TC5565 device has a capacity of 8192 × 8 bits. The four devices provide a total SRAM capacity of 32 KB.

Switches and indicators

LEDs

None.

Switches

None.

Straps

The module has five straps associated with the ECO level.

• Strap 0: ECO level
• Strap 1: ECO level
• Strap 2: ECO level
• Strap 3: ECO level
• Strap 4: ECO level

Connectors

The module has intra-module connectors used for connection to:

• The Samson motherboard
• Other baby modules

The ACCP console connection is provided through a plug board at the rear of the card crate.

A terminal can be connected to the ACCP console using an RS-232 cable.

I/O devices on the card

The module does not provide a conventional external I/O device interface directly on the PCB.

Console access is provided through the separate ACCP console plug board at the rear of the card crate.

PCB versions

The known PCB version is:

• A2

ECO

ECO, or Engineering Change Order, identifies a hardware revision or modification.

The documented board (http://sintran.com/hardware/nd-5000/nd-324716.html) has:

• PCB version: A2
• ECO level: 8

The ECO level is represented by straps 0 through 4.

Reference

• Sintran Data, Norsk Data hardware - ND-5000, section 1.4.1.8, “324716 - PCB 5616 - Samson ACCess Processor (ACCP) module”