Motorola MCPN750A 用户手册
6-4
Computer Group Literature Center Web Site
Functional Description
6
Figure 6-1. MCPN750A Block Diagram
NVRAM/
WD/RTC
66M
H
z
PPC
603
Proc
es
so
r
Bus
33MHz 32/64-bit PCI Local Bus
32
/6
4-
bit P
M
C
Slot 2
Arbitration
Control
L2 Cache
1M
Processor
MPC750
Core Power
Memory
Controller
Falcon 3
PCI Bridge
& MPIC
Raven 3 ASIC
DRAM
(Bank 1)
16M/64M/128M
SROM
AT24C04
Interrupt
Serializer
DRAM
(Bank 2)
16M/64M/128M
FLASH
(soldered)
4M
FLASH
(socketed)
1M
System
Registers
Clock
Generator
Reset
Control
ISA
Registers
Hot Swap
Control
Ethernet
Intel 21143
PBC
VT82C586B
PCI-PCI BRIDGE
Intel 21554
32
/6
4-
bit P
M
C
Slot 1
33M
H
z 32/
64-b
it C
o
m
p
ac
tP
C
I
Bus
CompactPCI J1/J2
User I/O J3 & J5
UARTs
16C550C
MK48T559
10BT/
100BTx
RS232
IOMX
Debug Connector
ISA
SE
RI
A
L
2
SE
RI
A
L
3
SE
RI
A
L
4
(O
P
T
IONA
L
ROUT
IN
G
T
O
TM)
SE
RI
A
L
1
U
SB1
EI
DE
U
SB0
Chipset
Ethe
rn
et
Se
ri
a
l
PM
C Slo
t 2
PM
C Slo
t 1