39,764
edits
1240: Difference between revisions
Jump to navigation
Jump to search
no edit summary
No edit summary |
No edit summary |
||
| Line 14: | Line 14: | ||
* [[Media:070-4342-01.pdf|1240 Service Manual Vol.1]] | * [[Media:070-4342-01.pdf|1240 Service Manual Vol.1]] | ||
* [[Media:070-4717-01.pdf|1240 Service Manual Vol.2]] | * [[Media:070-4717-01.pdf|1240 Service Manual Vol.2]] | ||
* [[Media:070-5378-00.pdf |1241 Service Manual addendum (PDF)]] | * [[Media:070-5378-00.pdf|1241 Service Manual addendum (PDF)]] | ||
* [[ROM images#1240|ROM images]] | * [[ROM images#1240|ROM images]] | ||
}} | }} | ||
| Line 24: | Line 24: | ||
The 1240/41 provides 14 levels of triggering with conditional branching. | The 1240/41 provides 14 levels of triggering with conditional branching. | ||
There are two cartridge interfaces. One is for I/O devices; three were produced. The [[1200C01]] is the RS232C Comm pack. The [[1200C02]] is the GPIB comm pack. The [[1200C11]] is the parallel printer comm pack. It required the [[12RC01]] Printer Support ROM pack. The other cartridge interface was memory specific and was for ROM and RAM packs. Both 8K and 64K RAM packs with battery backup were made, note that the battery is a potential HazMat made by Catalyst Research and may destroy the cartridge when it leaks. There were also ROM packs that allow for mnemonic disassembly and state analysis of most microprocessors of the time. The ROM packs were made with a generic PCB that had two socketed ROMS and jumpers to select the size. | There are two cartridge interfaces. One is for I/O devices; three were produced. The [[1200C01]] is the RS232C Comm pack. The [[1200C02]] is the GPIB comm pack. The [[1200C11]] is the parallel printer comm pack. It required the [[12RC01]] Printer Support ROM pack. | ||
The other cartridge interface was memory specific and was for ROM and RAM packs. Both 8K and 64K RAM packs with battery backup were made, note that the battery is a potential HazMat made by Catalyst Research and may destroy the cartridge when it leaks. There were also ROM packs that allow for mnemonic disassembly and state analysis of most microprocessors of the time. The ROM packs were made with a generic PCB that had two socketed ROMS and jumpers to select the size. | |||
See the [[Microprocessor support table]] for processor configuration options. | See the [[Microprocessor support table]] for processor configuration options. | ||
| Line 32: | Line 34: | ||
It uses either [[P6460]] (general purpose) or [[P6462]] (TTL) 9-channel probes. | It uses either [[P6460]] (general purpose) or [[P6462]] (TTL) 9-channel probes. | ||
==Internals== | ==Internals== | ||
The 1240 is built around an [[Intel 8088]] as the control processor with 64K DRAM, and firmware in a bank of EPROMs. A separate I/O processor board is powered by a [[Zilog | The 1240 is built around an [[Intel 8088]] as the control processor with 64K DRAM, and firmware in a bank of EPROMs. | ||
A separate I/O processor board is powered by a [[Zilog Z-80]]A CPU. The display controller is built from individual TTL and ECL ICs. | |||
The power supply is a switch-mode supply that mainly generates 5 V at up to 45 A. It requires a minimum load of 11.6 A. Additionally it generates 3 V at up to 8 A with no minimum load and several other voltages that are derived from linear post regulators. | The power supply is a switch-mode supply that mainly generates 5 V at up to 45 A. It requires a minimum load of 11.6 A. | ||
Additionally it generates 3 V at up to 8 A with no minimum load and several other voltages that are derived from linear post regulators. | |||
Boards are two to six layers. | Boards are two to six layers. | ||
The CPU board has battery backed up RAM to save the current configuration and one user configuration. This battery is a lithium iodide cell. It will eventually fail and leak, damaging the PCB. The battery is visible on the picture for the A09 processor board. | The CPU board has battery backed up RAM to save the current configuration and one user configuration. | ||
This battery is a lithium iodide cell. It will eventually fail and leak, damaging the PCB. | |||
The battery is visible on the picture for the A09 processor board. | |||
==See Also== | ==See Also== | ||