Model 100 ROM: Difference between revisions
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(New page: The model 100 has different hardware versions, one of the main differances is the ROM chips. Older unit gerneraly have the LH35618 chip and new the 3256C01, which is a 27256 compatible chi...) |
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The | The Model 100 has different hardware versions. One of the main differences is the ROM chip. Older units generally have the LH35618 chip and new the 3256C01, which is a 27256 compatible chip. | ||
Steve Adolph has a [http://www.club100.org/memfiles/index.php?&direction=0&order=&directory=Steve%20Adolph document] on this in his personal files at [[Club100]] | |||
The chip pinout are: | The chip pinout are: | ||
| Line 35: | Line 35: | ||
28 A14 VCC | 28 A14 VCC | ||
</pre> | </pre> | ||
[[Category:Model T Developer Reference]] | |||
Latest revision as of 11:42, 25 September 2009
The Model 100 has different hardware versions. One of the main differences is the ROM chip. Older units generally have the LH35618 chip and new the 3256C01, which is a 27256 compatible chip.
Steve Adolph has a document on this in his personal files at Club100
The chip pinout are:
Pin# LH535618 3256C07 1 VDD VPP 2 A10 A12 3 A7 A7 4 A6 A6 5 A5 A5 6 A4 A4 7 A3 A3 8 A2 A2 9 A1 A1 10 A0 A0 11 D0 D0 12 D1 D1 13 D2 D2 14 GND GND 15 D3 D3 16 D4 D4 17 D5 D5 18 D6 D6 19 D7 D7 20 A11 /CE 21 /OE A10 22 A13 /OE 23 /CE A11 24 A12 A9 25 A9 A8 26 A8 A13 27 /CS A14 28 A14 VCC
