Secondary Configuration WindowÐthe Show Ranges Window
2.6Secondary Configuration WindowÐthe Show Ranges Window
A small subwindow appears when you select the show ranges function key, 
, from the device area of the configuration window. Figure 2±3 illustrates what the show ranges window looks like.
Figure 2±3. The Show Ranges Window
| CONFIG: | ChooseDevice |
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| Valid address ranges for 2732/TMS2732A |
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| START | SIZE | TYPE | Vcc | Vpp | Pdt | CtrlReg | FmlyCode | BlkErase | Pbits |
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| 00000h | 1000h | EPROM | 5 | 21 | 10 | ooh | 40h | NO | O's only |
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27128 TMS27C128
27256 TMS27C256
2732 TMS2732A
2764 TMS2764 TMS27C64
7742 TMS7742
TMS370 16K_PE 256_DEE 4K_PE
512_DEE
C010
C050
The show ranges window does not neccesarily default to show the ranges of the chosen device. Instead, it shows the ranges of the device that the cursor is next to in the device table. You can scroll through the device table and notice the parameters changing in accordance with each new device the cursor is next to.
Table 2±3. Show Ranges Parameter Summary
Parameter | Description |
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Start | Valid start address for programming. |
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Size | Size of the valid program area. |
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Type | The type of memory in this range (EEPROM or EPROM). |
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VCC | Valid Vcc values are 0, 5, or 6 volts. |
VPP | Valid Vpp values are 0, 5, 12, 12.5 or 21 volts. |
pdt | Program pulse duration time. |
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ctrlReg | The control register. |
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FmlyCode | The hexadecimal family code of the device. |
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The block erase toggle. | |
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Pbits ² | The program algorithm. |
²The program algorithms are discussed in detail in subsection 2.6.1.
