5616
5616 is the Samson ACCess Processor module, abbreviated ACCP. Its product number is ND-324716.
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The ND-324716 is a newer version of the earlier ND-324702 ACCP module.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”