MPC8248 Freescale Semiconductor, Inc, MPC8248 Datasheet - Page 3

• Manufacturer Part Number: MPC8248
• Description: Mpc8248 Powerquicc Ii Integrated Communications Processor
• Manufacturer: Freescale Semiconductor, Inc

Figure 1
1.1
The major features of the MPC8272 are as follows:
Freescale Semiconductor
•
Parallel I/O
Generators
Baud Rate
Dual-issue integer (G2_LE) core
— A core version of the MPC603e microprocessor
— System core microprocessor supporting frequencies of 266-400 MHz
— Separate 16-Kbyte data and instruction caches:
— PowerPC architecture-compliant memory management unit (MMU)
— Common on-chip processor (COP) test interface
— Supports bus snooping for cache coherency
Timers
shows the block diagram of the MPC8272.
Features
G2_LE Core
FCC1
– Four-way set associative
– Physically addressed
– LRU replacement algorithm
Communication Processor Module (CPM)
FCC2
Controller
Interrupt
2 TDM Ports
32-bit RISC Microcontroller
MPC8272 PowerQUICC II™ Family Hardware Specifications, Rev. 1.5
and Program ROM
SCC1
Instruction
RAM
4 KB
16 Kbytes
16 Kbytes
D-Cache
I-Cache
D-MMU
Time Slot Assigner
I-MMU
SCC3
16 KB
Data
RAM
Serial interface
Figure 1. Block Diagram
SCC4
2 MII/RMII
Ports
SMC1
Serial Interface
Security (SEC)1
Serial
IDMAs
DMA
Virtual
SMC2
1 8-bit Utopia
Port
2
SPI
System Interface Unit
Memory Controller
Bus Interface Unit
System Functions
Clock Counter
60x-to-PCI
Bridge
(SIU)
Non-Multiplexed
I
2
C
I/O
Note
1 MPC8272/8248 only
2 MPC8272/8271 only
USB 2.0
32 bits, up to 66 MHz
60x Bus
PCI Bus
Overview
3