General
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General Information |
Two versions of the 1600 were created using the same chips. The MCP1600 used the microms with microinstructions that created a 8-bit microprocessor and the MP1600 used microms that created a 16-bit microprocessor. The 1600 chip set was also referred to as the WD-16 or WD16.
The 1600 is most well known for its use in the implementation of the DEC LSI-11 microcomputers. It was used in the Alpha Micro Systems AM100, the Western Digital 9000 Pascal Microengine and in many automation and control systems. |
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Production |
3rd Quarter 1975 |
| Designers | Unknown |
Architecture
| Type | Data Word | Address Space | Clock | Instruct- ions | Assists | Reg’s GP | Reg’s Math | Reg’s Index | IO Ports | Stack | Interrupts | Memory |
| CPU, NMOS | 8-bit | 64KB | 3.3Mhz | 84 | NA | 26 | 0 | 0 | Ext RAM | Vectored 4 Level |
Packages
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Chip Name |
Package |
On-Chip Identification |
Picture |
General Comments |
| CP1611 | 40 pins | Western Digital: CP1611xxx or
DEC: 21-11549-0x |
Control Chip (ALU) | |
| CP1621 | 40 pins | Western Digital: CP1621xxx or
DEC: 21-001C3-0x |
Data Chip (CU) |
Related Chips
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Related Chips |
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Second Sources |
None |
| Support Chips | CP1631-10 (DEC: 23-001B5) (PDP-11 Instruction Set ROM, Part 1), CP1631-07 (DEC: 23–002B5) (PDP-11 Instruction Set ROM, Part 2), CP1631-15 (DEC: 23-003B5, 23-091A5-01) (PDP-11 Extended Instruction Set / Floating Point Instruction Set ROM), CP1851 (General Purpose I/O), CP1631 (Microm), DM1881 (DMA), DM1883 (DMA), FD1771,81,91,95 (Floppy Disk Controller), UC1671 (Async/Sync Transmitter/Receiver) |