UPA Processor
+ ---------------+ Data Bus UPA Address Bus 1 +----------------+
| UltraSPARC |<---+ +----------->| Graphics |
| Process | | | +-------->| Subsystem |
+-------*--------+ /144bits | | +----------------+
| | | |
UPA Adress | | +-----------+ | |
Bus0 |-------------|----------->| SS_UP |<------+ |
| | | ASIC | /64bits
| | +-------+---+ |
| | | | +-------------+
| | | |<--------->| RISC & |
+-------*------+ | 72bits | |<----------| Clock |
| SYSIO |<-----|-----/--------+-----|--------------+ | Control |
| ASIC | | | |UPA Data Bus +-------------+
+-------*------+ | | |
| | +----*-----*----+
| +-------->| BMX | 288bits +---------------------+
| | Chips(18) |<------/-----------+ Memory SIMMs(16) |
| +---------------+ Memory | : |
| Data Bus +---------------------+
|
SBUS |
<================*==================*=========================*=========================*===========================>
| | | |
| | | |
SBUS Slots(4) +------*-------+ +------*------+ +-----*----+ Keyboard,
| Preipheral | | APC & | | Slavio |<---->Floppy, &
| Interface | | CS4231 ASIC | | ASIC | Serial Port
| ASIC | +------*------+ +-----*----+
+------*-------+ | |
| | | EBus 8bit
| | +------|--------+
| Audio | |
SCSI Interface | |
Ethernet, & +-------+ +-------+
Parallel Port | TOD/ | | Flash |
| NVRAM | | PPROM |
+-------+ +-------+