參數(shù)資料
型號： MPC8544AVTAQG
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 32-BIT, 400 MHz, MICROPROCESSOR, PBGA783
封裝： 29 X 29 MM, 1 MM PITCH, LEAD FREE, PLASTIC, FC-PBGA-783
文件頁數(shù)： 67/128頁
文件大小： 1411K
代理商： MPC8544AVTAQG
MPC8544E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 1
Freescale Semiconductor
43
Enhanced Three-Speed Ethernet (eTSEC), MII Management
8.7.5
RMII AC Timing Specifications
This section describes the RMII transmit and receive AC timing specifications.
8.7.5.1
RMII Transmit AC Timing Specifications
The RMII transmit AC timing specifications are in Table 39.
Figure 23 shows the RMII transmit AC timing diagram.
Figure 23. RMII Transmit AC Timing Diagram
8.7.5.2
RMII Receive AC Timing Specifications
Table 39. RMII Transmit AC Timing Specifications
At recommended operating conditions with L/TVDD of 3.3 V ± 5% or 2.5V ± 5%.
Parameter/Condition
Symbol1
Min
Typ
Max
Unit
Notes
REF_CLK clock period
tRMT
15.0
20.0
25.0
ns
REF_CLK duty cycle
tRMTH
35
50
65
%
REF_CLK peak-to-peak jitter
tRMTJ
—
250
ps
Rise time REF_CLK (20%–80%)
tRMTR
1.0
—
2.0
ns
Fall time REF_CLK (80%–20%)
tRMTF
1.0
—
2.0
ns
REF_CLK to RMII data TXD[1:0], TX_EN delay
tRMTDX
1.0
—
10.0
ns
Note:
1. The symbols used for timing specifications follow the pattern of t(first two letters of functional block)(signal)(state)(reference)(state) for
inputs and t(first two letters of functional block)(reference)(state)(signal)(state) for outputs. For example, tMTKHDX symbolizes MII transmit
timing (MT) for the time tMTX clock reference (K) going high (H) until data outputs (D) are invalid (X). Note that, in general,
the clock reference symbol representation is based on two to three letters representing the clock of a particular functional.
For example, the subscript of tMTX represents the MII(M) transmit (TX) clock. For rise and fall times, the latter convention is
used with the appropriate letter: R (rise) or F (fall).
Table 40. RMII Receive AC Timing Specifications
At recommended operating conditions with L/TVDD of 3.3 V ± 5%.or 2.5V ± 5%.
Parameter/Condition
Symbol1
Min
Typ
Max
Unit
Notes
REF_CLK clock period
tRMR
15.0
20.0
25.0
ns
REF_CLK duty cycle
tRMRH
35
50
65
%
REF_CLK
TXD[1:0]
tRMTDX
tRMT
tRMTH
tRMTR
tRMTF
TX_EN
TX_ER
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相關代理商/技術參數(shù)
參數(shù)描述
MPC8544AVTAQGA 制造商:Freescale Semiconductor 功能描述:PQ38K 8544 - Bulk
MPC8544AVTARJ 功能描述:微處理器 - MPU PQ3 8544 COMMERCIAL 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
MPC8544AVTARJA 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC PQ38K 8544 RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風格:SMD/SMT
MPC8544COMEDEV 功能描述:開發(fā)板和工具包 - 其他處理器 EXPRESS KIT 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:
MPC8544CVTALF 功能描述:微處理器 - MPU PQ38K 8544 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
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