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| | Western Digital MCP1600 / MP1600
General
|
General Information
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Western Digital's 1st microprocessor, the 1600 was Implemented
with 3 chips. The 1600 was a microprogrammable CPU. The naming
convention for the 1600 was a little confusing. The 1611 Control Chip was an
ALU and 1621 Data Chip was the
CU. The micro-instructions data
were stored in the 1631 Microms (contraction of Micro ROM). The 1611 had 26
registers and an accumulator. The registers and accumulator were 8-bits
each.
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. |
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
|
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
|
Related Chips
|
MP1600
|
|
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)
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