5250
From Citylan
TWINAX Interface Circuit (TIC)
Pinout
DIP28-600mil +---\/---+ D2 | 1 28| Vcc D3 | 2 27| D1 *WR | 3 26| D0 *TXEN | 4 25| *CS *DTX | 5 24| *RD TX | 6 23| A0 TX DMA | 7 22| A1 RX | 8 21| A2 D4 | 9 20| *INT1 D5 |10 19| *INT2 *RESET |11 18| RX DMA XTAL2 |12 17| CLOCKOUT XTAL1 |13 16| D7 GND |14 15| D6 +--------+
Frequency
DIP28
Set reader to FREQ, put black probe to GND, red probe to 12, 13, 17 to measure CPU clock
External links
Files
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COM52C50 Datasheet