參數(shù)資料
型號： MPC852T
廠商： 飛思卡爾半導體(中國)有限公司
英文描述： Hardware Specifications
中文描述： 硬件規(guī)格
文件頁數(shù)： 20/80頁
文件大?。?/td> 3080K
代理商： MPC852T
MPC852T Hardware Specifications, Rev. 3.1
20
Freescale Semiconductor
Bus Signal Timing
B39
AS valid to CLKOUT rising edge
10
(MIN = 0.00
x B1 + 7.00)
7.00
—
7.00
—
7.00
—
7.00
—
ns
B40
A(0:31), TSIZ(0:1), RD/WR, BURST, valid to
CLKOUT rising edge (MIN = 0.00 x B1 + 7.00)
7.00
—
7.00
—
7.00
—
7.00
—
ns
B41
TS valid to CLKOUT rising edge (setup time)
(MIN = 0.00 x B1 + 7.00)
7.00
—
7.00
—
7.00
—
7.00
—
ns
B42
CLKOUT rising edge to TS valid (hold time)
(MIN = 0.00 x B1 + 2.00)
2.00
—
2.00
—
2.00
—
2.00
—
ns
B43
AS negation to memory controller signals
negation (MAX = TBD)
—
TBD
—
TBD
—
TBD
—
TBD
ns
1
If the rate of change of the frequency of EXTAL is slow (that is, it does not jump between the minimum and maximum values
in one cycle) or the frequency of the jitter is fast (that is, it does not stay at an extreme value for a long time), then the maximum
allowed jitter on EXTAL can be up to 2%.
2
For part speeds above 50MHz, use 9.80ns for B11a.
3
The timing required for BR input is relevant when the MPC852T is selected to work with internal bus arbiter. The timing for
BG input is relevant when the MPC852T is selected to work with external bus arbiter.
4
For part speeds above 50MHz, use 2ns for B17.
5
The D(0:31) and DP(0:3) input timings B18 and B19 refer to the rising edge of the CLKOUT in which the TA input signal is
asserted.
6
For part speeds above 50MHz, use 2ns for B19.
7
The D(0:31) and DP(0:3) input timings B20 and B21 refer to the falling edge of the CLKOUT. This timing is valid only for read
accesses controlled by chip-selects under control of the UPM in the memory controller, for data beats where DLT3 = 1 in the
UPM RAM words. (This is only the case where data is latched on the falling edge of CLKOUT.)
8
The timing B30 refers to CS when ACS = 00 and to WE(0:3) when CSNT = 0.
9
The signal UPWAIT is considered asynchronous to the CLKOUT and synchronized internally. The timings specified in B37
and B38 are specified to enable the freeze of the UPM output signals as described in
Figure 18
.
10
The AS signal is considered asynchronous to the CLKOUT. The timing B39 is specified in order to allow the behavior specified
in
Figure 21
.
Table 9. Bus Operation Timings (continued)
Num
Characteristic
33 MHz
40 MHz
50 MHz
66 MHz
Unit
Min
Max
Min
Max
Min
Max
Min
Max
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相關代理商/技術參數(shù)
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MPC852TADS 功能描述:開發(fā)板和工具包 - 其他處理器 ADS BOARD FOR 852 RoHS:否 制造商:Freescale Semiconductor 產(chǎn)品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓:
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MPC852TCVR100A 功能描述:微處理器 - MPU Ethernet 100 MHz RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324
MPC852TCVR50A 功能描述:微處理器 - MPU Ethernet 50 MHz RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324
MPC852TCVR50A 制造商:Freescale Semiconductor 功能描述:Embedded Networking Processor
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