TECHNICAL NOTES ON THE EEC-IV MCU - Auto diagnostics
TECHNICAL NOTES ON THE EEC-IV MCU - Auto diagnostics
TECHNICAL NOTES ON THE EEC-IV MCU - Auto diagnostics
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8763 EPROM (IC-8)<br />
8 GND RP4 20 CPU-59, J3-21 /ST<br />
9 J3-12 /MRESET 21 CPU-58, J3-23 IT<br />
10 CPU-68, J3-19 MB7 22 CPU-57, J3-25 DI<br />
11 CPU-67, J3-17 MB6 23 /CE<br />
12 CPU-66, J3-15 MB5 24 GND VSS<br />
Table 7: 8763 EPROM Pinout<br />
LEGEND:<br />
RP ROM PORT<br />
OCP OFF CHIP PORT<br />
MB EXTERNAL MEMORY BUS<br />
EER EXECUTE ENABLE REGISTER<br />
DAR DATA ADDRESS REGISTER<br />
DI DIRECTI<strong>ON</strong> INDICATOR<br />
IT INSTRUCTI<strong>ON</strong> TRANSFER<br />
STB STROBE<br />
Table 8: 8061 Chipset Legend<br />
Hardware development tools used in conjunction with the <strong>EEC</strong>-<strong>IV</strong> include:<br />
Eectch98-Part1.fm<br />
1. Engineering Console -- a lab instrument for real-time program debug and<br />
monitor of the <strong>EEC</strong>-<strong>IV</strong> system.<br />
2. Calibration Console -- a portable unit for vehicle use to permit field display<br />
and modification of program memory.<br />
3. D/A Converter Unit -- an add-on feature to the calibration console that<br />
converts <strong>EEC</strong>-<strong>IV</strong> system digital outputs to analog form for data logging by<br />
external recording equipment.<br />
There is a “Production Code Release System” binary file verification and comparison<br />
program for release of production binary files to outside suppliers for ROM<br />
manufacturing.<br />
<strong>EEC</strong>-<strong>IV</strong> Technical Notes: Hardware 13 last edited: 9/29/98
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