1.4.1.5 - Norsk Data hardware - ND-100

Description

• Ethernet interface version II, 10Mb LANCE.
• Using 18 pieces of DRAM chips for local memory (8 bits words + 1 parity bit), 262144 x 1 bit x 18 pieces (total 576 KB).
• Print: B   ECO: M
• Print: C   ECO: M
• Print: E   ECO: M
• Print: G   ECO: M
• PCB size 367 x 280 mm, 4 layers
• Release date 27. Mar. 1989

Chipset

• 08900A
• 08901A
• 45200A
• 45300B
• 45400C
• 45500C
• 45501A
• 45502A
• AM7990 - LANCE
• AAA2800 or
  HM51258 - DRAM x 18 pieces
• MC68000 - Microprocessor
• MC68901 - MFP

LEDs

• EXT-POWER (yellow) - tranceiver power on
• MCYC (yellow) - active memory cycle
• HALT (red) - MC68000 halt
• RESET (red) - MC68000 reset
• PARITY-ERROR (red) - parity error

Straps

• None

Switches

• TH1 - Device number
• TH2 - Bank, (L) lower limit memory address switch
• TH3 - Bank, (M) lower limit memory address switch

Connectors

• J13 - Console/Trace terminal
• (A) Ethernet drop cable
• (B) Not used
• (C) Standard ND-100 system bus