1.4.1.8 - Norsk Data hardware - ND-5000

Description

• The motherboard with connectors and the RALLAP for the Rallar CPU.
• Print: B   ECO: 3
• PCB size 405 x 280 mm, 12 layers
• Release date 07. Sep. 1990

Chipset

• 85000B
• 86000B
• 86800B (27C210 - 1Mbit EPROM)
• Dolphin RLP

LEDs

• AMODE (yellow) - In access (bootstrap) mode for loading control store etc
• EPAR off (yellow) - Parity check disabled for CS, SRF, TSB, ICA and DCA
• SELFTEST (red) - Failed (or running). Exact function controlled by MFbus controller
• Local memory error (red) - Exact function controlled by register CREG2 in LMC
• External DRY (yellow) - Local memory accessed from MFbus
• Local DRY (yellow) - Local memory accessed from this CPU
• CPU F_CLOCK (green) - Micro program is running or being loaded

Straps

• 5 straps - Octobus station
• 5 straps - ECO level, CPU
• 3 straps - ECO level, board

Switches

• None

Connectors

• Inter connectors to baby modules

• (A) Standard ND-MFB
• (B) Standard ND-MFB
• (C) Standard ND-MFB
• (D) Standard ND-MFB