Features
The MPC875 block diagram is shown in
Instruction
Bus
Embedded
MPC8xx
Processor
Core
Load/Store
Bus
8-Kbyte
Instruction Cache
Instruction MMU
32-Entry ITLB
8-Kbyte
Data Cache
Data MMU
32-Entry DTLB
Slave/Master IF
Unified
Bus
System Interface Unit (SIU)
Memory Controller
External
Internal
Bus Interface Bus Interface
Unit
Unit
System Functions
PCMCIA-ATA Interface
Fast Ethernet
Controller
DMAs
DMAs
DMAs
FIFOs
10/100
BaseT
Media Access
Control
MIII/RMII
Parallel I/O
4 Baud Rate
Generators
Parallel Interface Port
Timers
4
Timers
Security Engine
Controller
Channel
AESU
DEU
MDEU
Interrupt
8-Kbyte
Controllers Dual-Port RAM
32-Bit RISC Controller
and Program
ROM
Virtual IDMA
and
Serial DMAs
USB
SCC4
SMC1
SPI
I
2
C
Time Slot Assigner
Serial Interface
Figure 1. MPC875 Block Diagram
MPC875/MPC870 Hardware Specifications, Rev. 3.0
6
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
Freescale Semiconductor
FREESCALE [ FREESCALE SEMICONDUCTOR, INC ]
