参数资料
型号: MPC8349ECVVAGFB
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 400 MHz, MICROPROCESSOR, PBGA672
封装: 35 X 35 MM, 1.46 MM HEIGHT, 1 MM PITCH, LEAD FREE, TBGA-672
文件页数: 17/87页
文件大小: 1037K
代理商: MPC8349ECVVAGFB
MPC8349EA PowerQUICC II Pro Integrated Host Processor Hardware Specifications, Rev. 12
24
Freescale Semiconductor
Ethernet: Three-Speed Ethernet, MII Management
8.2.1.1
GMII Transmit AC Timing Specifications
Table 25 provides the GMII transmit AC timing specifications.
Figure 8 shows the GMII transmit AC timing diagram.
Figure 8. GMII Transmit AC Timing Diagram
Table 25. GMII Transmit AC Timing Specifications
At recommended operating conditions with LVDD/OVDD of 3.3 V ± 10%.
Parameter/Condition
Symbol1
Min
Typ
Max
Unit
GTX_CLK clock period
tGTX
—8.0
ns
GTX_CLK duty cycle
tGTXH/tGTX
43.75
56.25
%
GTX_CLK to GMII data TXD[7:0], TX_ER, TX_EN delay
tGTKHDX
0.5
5.0
ns
GTX_CLK clock rise time (20%–80%)
tGTXR
——
1.0
ns
GTX_CLK clock fall time (80%–20%)
tGTXF
——
1.0
ns
GTX_CLK125 clock period
tG125
2
—8.0
ns
GTX_CLK125 reference clock duty cycle measured at LVDD/2
tG125H/tG125
45
55
%
Notes:
1. The symbols for timing specifications follow the pattern 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, tGTKHDV symbolizes GMII transmit timing (GT)
with respect to the tGTX clock reference (K) going to the high state (H) relative to the time date input signals (D) reaching the
valid state (V) to state or setup time. Also, tGTKHDX symbolizes GMII transmit timing (GT) with respect to the tGTX clock
reference (K) going to the high state (H) relative to the time date input signals (D) going invalid (X) or hold time. In general,
the clock reference symbol is based on three letters representing the clock of a particular function. For example, the subscript
of tGTX represents the GMII(G) transmit (TX) clock. For rise and fall times, the latter convention is used with the appropriate
letter: R (rise) or F (fall).
2. This symbol represents the external GTX_CLK125 signal and does not follow the original symbol naming convention.
GTX_CLK
TXD[7:0]
tGTKHDX
tGTX
tGTXH
tGTXR
tGTXF
TX_EN
TX_ER
相关PDF资料
PDF描述
MPC8349CVVAGFB 32-BIT, 400 MHz, MICROPROCESSOR, PBGA672
MPC8349ECZUALDB 32-BIT, 667 MHz, MICROPROCESSOR, PBGA672
MPC8349CVVALFB 32-BIT, 667 MHz, MICROPROCESSOR, PBGA672
MPC8349VVAGDB 32-BIT, 400 MHz, MICROPROCESSOR, PBGA672
MPC8349EVVAGFB 32-BIT, 400 MHz, MICROPROCESSOR, PBGA672
相关代理商/技术参数
参数描述
MPC8349ECVVAJDB 功能描述:微处理器 - MPU 8349 TBGA NO PB W/ ENC RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324
MPC8349ECVVAJFB 功能描述:微处理器 - MPU 8349 TBGA NO-PB W/ ENCR RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324
MPC8349ECVVALDB 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Integrated Host Processor Hardware Specifications
MPC8349ECVVALFB 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Integrated Host Processor Hardware Specifications
MPC8349ECZUAGDB 功能描述:微处理器 - MPU 8349 TBGA W/ ENCRYP RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324