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Configure the emulator
Set the SIZE CONFIGURATION jumpers to match the device size you are emulating. For example, if you
will be emulating a 27C512 (64Kx8), set the jumpers for a 64Kx8 device. We printed the configuration
information on the emulator’s label for easy reference.
The configuration jumpers connect or isolate upper address lines to insure immunity to target wiring
variances. If all jumpers are removed, we will ignore address lines A13 and up; emulating an 8Kx8 device.
Adding the first jumper will configure us to emulate a 16Kx8 device. Adding the next jumper configures
us for a 32Kx8 device and so forth, up to the maximum capacity of this emulator model.
The following table shows the proper settings:
Example
Jumper
Jumper
Jumper
Jumper
Jumper
Jumper
Device
Device #s
#1
#2
#3
#4
#5
#6
Size
8Kx8
16Kx8
32Kx8
64Kx8 or
2764
27128
27256
27512, 27210,
Off
On
On
On
Off
Off
On
On
Off
Off
Off
On
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
64Kx16
271024
128Kx8 or
27010, 27220,
On
On
On
On
Off
Off
128Kx16
272048
256Kx8 or
27020, 27240,
On
On
On
On
On
Off
256Kx16
274096
512Kx8
27040
On
On
On
On
On
On
NOTE that this table shows the configuration information for all Econo ROM II models. Some of these
configurations may not apply to your particular model, depending on its capacity and data width. For
example, an ER2-512-xx is a 64Kx8 emulator and therefore, can NOT be configured to emulate 16 bit or
128Kx8 and larger devices.
Disable Any In-Circuit Programming Voltages
EPROMs are usually programmed with “super voltages” (> 5V) and are designed to handle such voltages
on some pins; Econo ROM II is not! If your target is capable of in-circuit EPROM programming, disable or
isolate the high voltage, not just the high voltage control signals. Even short surges during power cycling
could be damaging.
Econo ROM II is a 5volt ONLY device. Any voltage
greater than 5 Volts or less than 0 Volts will damage it.
Econo ROM II User’s Manual
2
Copyright ? 1996, TechTools
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相关PDF资料
ER3-8M EMULATOR EPROM ECONOROM III 8MEG
ESF2424 FRAME SWING ECLIPSE 19.25X19"
ESF3024 FRAME SWING ECLIPSE 24.5X19"
ESF3624 FRAME SWING ECLIPSE 29.75X19"
ESP1212 PANEL STEEL SWING 12X12" WHT
ESP1612 PANEL STEEL SWING 16X12" WHT
ESP1616 PANEL STEEL SWING 16X16" WHT
ESP1620 PANEL STEEL SWING 16X20" WHT
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