參數(shù)資料
型號: MPC857T
廠商: Motorola, Inc.
英文描述: Hardware Specifications
中文描述: 硬件規(guī)格
文件頁數(shù): 7/88頁
文件大?。?/td> 1104K
代理商: MPC857T
MOTOROLA
MPC862/857T/857DSL Hardware Specifications
For More Information On This Product,
Go to: www.freescale.com
7
Maximum Tolerated Ratings
Figure 2. MPC857T/MPC857DSL Block Diagram
3
Maximum Tolerated Ratings
This section provides the maximum tolerated voltage and temperature ranges for the
MPC862/857T/857DSL. Table 2 provides the maximum ratings.
Table 2. Maximum Tolerated Ratings
(GND = 0 V)
Rating
Symbol
Value
Unit
Max Freq
(MHz)
Supply voltage
1
VDDH
-0.3 to 4.0
V
-
VDDL
-0.3 to 4.0
V
-
KAPWR
-0.3 to 4.0
V
-
VDDSYN
-0.3 to 4.0
V
-
Input voltage
2
V
in
GND-0.3 to VDDH
V
-
Bus
System Interface Unit (SIU)
Embedded
MPC8xx
Processor
Core
Parallel I/O
Memory Controller
4
Timers
Interrupt
Controllers
8-Kbyte
Dual-Port RAM
10
Serial
and
2
Independent
DMA
Channels
System Functions
Real-Time Clock
PCMCIA/ATA Interface
4-Kbyte
Instruction Cache
32-Entry ITLB
Instruction MMU
4-Kbyte
Data Cache
32-Entry DTLB
Data MMU
Instruction
Bus
Load/Store
Bus
Unified
4 Baud Rate
Generators
Parallel Interface Port
and UTOPIA
Internal
Bus Interface
Unit
External
Bus Interface
Unit
Timers
32-Bit RISC Controller
and Program
ROM
SCC1
Serial Interface
I
2
C
SPI
SMC2*
SMC1
Time Slot Assigner
DMAs
FIFOs
10/100
Base-T
Media Access
Control
MII
Fast Ethernet
Controller
*The MPC857DSL does not contain SMC2 nor the Time Slot Assigner, and provides eight SDMA controllers.
F
Freescale Semiconductor, Inc.
n
.
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