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30 RS/6000 43P 7043 Models 150 and 260 Handbook
Figure 9. RS/6000 High Level System Block Diagram (Model 260)
The memory controller chip can act as the system interrupt controller, or can
pass interrupts through to an external device. Two distinct interrupt protocols
POWER3
200 MHz
4 MB L2
32 bytes
@ 200 MHz
256 MB - 2 GB
PCI Bridge
PCI Bridge
6XX Data Bus
16 Bytes
100 MHz
6XX Address
100 MHz
3 cycle tenure
Memory Data Bus
16 bytes @ 100 MHz
6XX-MX Bus
66 MHz
3 PCI Slots
32-Bit / 33 MHz
2 PCI Slots
64-Bit / 50 MHz
Memory
Address
ISA Bridge
W83C553
Super I/OAudio
Integrated
POWER3
CPU Card
planar A
planar B
Memory Card
AB4
Clock
Service Processor
256 MB - 2 GB
Memory Card
POWER3
200 MHz
4 MB L2
32 bytes
@ 200 MHz
POWER3
CPU Card
Data
U-SCSIU-SCSI10/100 ETH
Addr/Cntl