+--------------------+
| |
+--------------------+
A
+------------------------------------------------------------+ |
+--->+------------------------------------------------------------+ |
+------------+ | +------------------------------------------------------------+ |
| | | +------------------------------------------------------------+ |
| EMC |<------+ MEMORY BANK |
| | | +------------------------------------------------------------+ |
| | +--->+------------------------------------------------------------+ |
+------------+ +------------------------------------------------------------+ |
A +------------------------------------------------------------+ |
| |
V |
+--------------------------------+ +-----------------------------+ +-----------------------------+ |
+--------------------------------+ +----------S B U S------------+ +-----------------------------+ |
+--------------------------------+ +-----------------------------+ +-----------------------------+ |
A |
| |
+-------------------+---------------------+------------------+ |
| | | | |
| | | V |
V V V +----------+ |
+-----------+ +---------+ +---------+ | | Floppy |
| | | | | | +-->| |------------------------+
+------+ | | | SEC | | DMA2 | | | N82077SL | |
+---|DBRI |<------>| MIS | | | | | | | | |
| | | | | +---------+ +---------+ | +----------+ +---------+
| +------+ | | | | | |
| | +-----------+ +-------------------~|~--------+-----------------+ |
| | | +--+ u0705 | | +---------+ |
| V T1201 +-------------------- ~| ~---| |<----------+--------------+ | +---> |> NVRAM | |
| +--------+ | | +--+ | | | | +---------+ |
| | | | +---------+ V V | | |
| +--------+ | | | +---------+ +---------+ | | |
| | V V | AM | | EMULEX | | | |
| +-----+ +-----+ | +----+ +----+ | 79C90 | | FAS101 | +----------+ |
| | 2768A | | | ZILOG | | | | | | +-----------+ |
| +-----+ +-----+ | | Z85c3008 | +---------+ +---------+ +---> |> EPROM | |
| | +----+ +----+ | | +-----------+ |
| +-+ +-+ +-+ +-+ | | | +------------+ |
| +-+ +-+ +-+ +-+ | +------+--------+ +-------+------+ | |
| +-----+ +-----+ | | | | | | | |
| | | | | | V V V | V | |
| +-----+ +-----+ | +----+ +----+ +----+ +-------+ | +-----+ | Internal SCSI |
| | |5180| |5170| |5180| | |<--~|~--|T7213| +-------------------------------+
| +----+ +----+ | +----+ +----+ +----+ |PT3877 | | +-----+ |
| | | | | | | | | +-------+ | |
| +----+ +----+ | +-----+-----+---+-+----++ | | |
| | | | | | | | | |
| +-----+ +-----+ | V V V V V V V |
| | | | | | +---+ +---+ +---+ +---+ +---+ +-----+ +-----+ |
| +-----+ +-----+ | +---+ +---+ +---+ +---+ +---+ |PT3983 |1473 | |
| | | | | |8A270| | +-----+ +-----+ |
+----+ +--+ | +-----+--+--+-----+ | | |
| | | | | | |
V V V V V | V
+----+----+ +----------+ +------+ +-----------------+ +-----------+ | +---------------------+
|ISDN port| | Parallel | | K/B | |Serial port(A/B) | | TP port | | | SCSI Port |
+----+----+ +----------+ +------+ +-----------------+ +-----------+ | +---------------------+
| AUI |<------------------------------------------------+
+----------+