参数资料
型号: XRM48L950ZWTT
厂商: Texas Instruments
文件页数: 65/176页
文件大小: 0K
描述: MCU 16/32Bit FLASH 3MB 337NFBGA
标准包装: 1
系列: Hercules™ ARM® RM4x
应用: 工业安全,医疗
核心处理器: ARM? Cortex? - R4F
程序存储器类型: 闪存(3MB)
控制器系列: RM4
RAM 容量: 256K x 8
接口: CAN,以太网,I²C,LIN,MibSPI,SCI,SPI,USB
输入/输出数: 120
电源电压: 1.14 V ~ 3.6 V
工作温度: -40°C ~ 105°C
安装类型: 表面贴装
封装/外壳: 337-LFBGA
包装: 托盘
供应商设备封装: 337-NFBGA(16x16)
其它名称: 296-29390
1
2
MII_MRCLK
MII_MRXD
MII_MRXDV
MII_MRXER
VALID
SPNS174A – APRIL 2012 – REVISED SEPTEMBER 2013
5.10 Ethernet Media Access Controller
The Ethernet Media Access Controller (EMAC) provides an efficient interface between the CPU and the
network. The EMAC supports both 10Base-T and 100Base-TX, or 10 Mbits/second (Mbps) and 100 Mbps
in either half- or full-duplex mode, with hardware flow control and quality of service (QoS) support.
The EMAC controls the flow of packet data from the RM4x device to the PHY. The MDIO module controls
PHY configuration and status monitoring.
Both the EMAC and the MDIO modules interface to the RM4x device through a custom interface that
allows efficient data transmission and reception. This custom interface is referred to as the EMAC control
module, and is considered integral to the EMAC/MDIO peripheral. The control module is also used to
multiplex and control interrupts.
5.10.1 Ethernet MII Electrical and Timing Specifications
Figure 5-17. MII Receive Timing
Table 5-26. MII Receive Timing
Parameter
Description
MIN
MAX
tsu(MIIMRXD)
Setup time, MIIMRXD to MIIMRCLK rising edge
8ns
tsu(MIIMRXDV)
Setup time, MIIMRXDV to MIIMRCLK rising edge
8ns
tsu(MIIMRXER)
Setup time, MIIMRXER to MIIMRCLK rising edge
8ns
th(MIIMRXD)
Hold time, MIIMRXD valid after MIIRCLK rising edge
8ns
th(MIIMRXDV)
Hold time, MIIMRXDV valid after MIIRCLK rising edge
8ns
th(MIIMRXER)
Hold time, MIIMRXDV valid after MIIRCLK rising edge
8ns
Copyright 2012–2013, Texas Instruments Incorporated
Peripheral Information and Electrical Specifications
157
Product Folder Links: RM48L950 RM48L750 RM48L550
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