IBM RS/6000 H50 - System Data Flow

System Data Flow
64 MB – 4 GB
(16 & 64 Mbit)
2 – 32 DIMMS
604e
6XX 4Word4Word
Core Memory
Controller
6XX–MX Bus
64 Addr/Data/Data
33 Mhz
64 Bit /
(Data Transfer Engine)
PCI Bus A
33 Mhz
32 Bit /
Arbitration
System
I
2
C
POR Config
System Specific
Gate Array
IPLROS
MPIC2A
(Parallel)
Serial (2)
Mouse
Keyboard
Super I/O
ISA Bus
PCI to ISA
National
Serial
Serial Port
TOD
X–Bus
Diskette
SCSI ADAPTER
DASD
MEDIA
Internal SCSI
External/ Internal SCSI
NCR 53C825A
NCR 53C825A
CDROM
Ethernet Twisted Pair
AMD79C970
Ethernet Adapter Unit Interface (AUI)
ETHERNET ADAPTER
80C42
PCI Bus B
33 Mhz
32 Bit /
(SDRAMS)
PCI32–A PCI32–B PCI64–C
87332
SCSI ADAPTER
Op–Panel
J–Tag
Service
Processor
Connector
83 MHZ
83 MHZ
50 MHz
P1284
I/O Board
Processor Card
Memory Card
System Board
PCI Bus C
60X 2Word
166 MHZ
604e
60X 2Word
166 MHZ X5 ChipX5 Chip
Cache
RAM
256 KB
L2 Cache
Control
8–way Set Assoc
166 MHZ
Cache
RAM
256 KB
L2 Cache
Control
8–way Set Assoc
166 MHZ
332 MHZ 332 MHZ
BUFFER/MUX
I C
2
PCI Feature Slots 64 Bit PCIShared ISA Slots
87 6 5 432 19
BusID 0
BusID 2 BusID 1
Rajah ASIC
SSC
SP –Bus
Clock
(50 Mhz)
NVRAM
Hot Plug
(1 MB)
DASD
Hot Plug
J–TAG
BUFFER
Env Sensors
VPD
VPD
VPD
BUFFER
Master
Oscillator
VPD
I
2
C
Fan Monitoring and
Control (FMC) card
7
Fans
Chapter 1. Reference Information 1-7