ER3-1M TechTools, ER3-1M Datasheet - Page 15

• Manufacturer Part Number: ER3-1M
• Description: EMULATOR EPROM ECONOROM III 1MEG
• Manufacturer: TechTools
• Series: EconoROM™ IIIr
• Type: Memoryr

Specifications of ER3-1M

• Contents: ER3 EconoROM III Emulator, Cables (Daisy-chain, LPT and Target) and more
• For Use With/related Products: EPROMs
• For Use With: CBL08-25 - 25 FT DOWNLOAD CABLE UPGRADEC32D-6 - 6" TARGET CABLE IDC TO 32PIN DIPC28D-6 - 6" TARGET CABLE IDC TO 28PIN DIPPS-RT1 - EXTERNAL PWR SUPPLY
• Other names: ER31M

Enhancements
Faster Downloads - Turn Off Verify
After you have used the emulator for a while and gained confidence that it is loading reliably, you can add a
/V0 parameter to tell the loader to skip the verify operation. This will reduce your load times by over 75%!
EconoROM III is optimized for the fastest possible downloads. Therefore, the data stream FROM the
HOST TO EconoROM III is much faster than the reverse direction.
If you ever wish to verify the CURRENT contents of EconoROM III’s memory against a file, simple do a
load with a “/V2” option (verify ONLY).
Memory Retention
EconoROM III uses SRAMs to store the code image. If you wish to cycle the target power to see the target
execute from power up, you will need to connect an external power supply to the emulator to maintain the
SRAM contents during the power outage. The emulator will retain its contents as long as EITHER target
power is applied OR external power is supplied to its power-in connector. The external power must be a
regulated 5VDC at 300ma or more.
Increase 16bit Transfer Speed
The 16bit loader (ER3LD.EXE) is capable of over-running some printer ports. To allow proper operation
with ALL printer ports, the 16bit loader includes a SPEED parameter. Once basic functionality is
established, you may choose to speed-up your 16bit downloads. The download speed defaults to its slowest
setting to insure compatibility with all printer ports. The self-test program does a reliability test at a
specified speed setting. Re-run the ER3TEST program with a faster speed setting (lower /Dx number). If
the reliability test shows that the system is reliable at this speed, you will be able to use this same parameter
on the program.
EconoROM III User’s Manual
11
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