EMERSON KJ3242X1-BA1控制系统模块
PLD中四个32位定时器的时钟源为25MHz。定时器预分频器必须配置为生成1MHz定时器参考。有关编程信息，请参阅《MVME7100单板计算机程序员参考》。4.7以太网接口MVME7100使用MC864xD以太网控制器提供四个10/100/1000Mbps全双工以太网接口。使用两个Broadcom BCM5482S PHY。MC864xD上的以太网端口配置为在RGMII模式下运行。两个千兆以太网接口连接到带有集成LED的前面板RJ-45连接器，用于速度和活动指示。其他两个千兆以太网接口路由到P2用于后端I/O。有关编程信息，请参阅《MVME7100单板计算机程序员参考。本地总线接口》。MVME71000使用MC864xD本地总线控制器（LBC）访问板载闪存和I/O寄存器。LBC具有可编程定时模式，以支持不同访问时间的设备，以及8、16和32位的设备宽度。MVME7100在GPCM模式下使用LBC连接到两个板载闪存物理组，一个板载四UART（QUART）、一个MRAM和板载32位定时器以及控制/状态寄存器。
The clock source for the four 32-bit timers in the PLD is 25MHz. The timer prescaler must be configured to generate a 1MHz timer reference. For programming information, see MVME7100 Single Board Computer Programmer’s Reference. 4.7 Ethernet Interfaces The MVME7100 provides four 10/100/1000Mbps full-duplex Ethernet interfaces using the MC864xD Ethernet Controllers. Two Broadcom BCM5482S PHYs are used. The Ethernet ports on the MC864xD are configured to operate in RGMII mode. Two Gigabit Ethernet interfaces are routed to front panel RJ-45 connectors with integrated LEDs for speed and activity indication. The other two Gigabit Ethernet interfaces are routed to P2 for rear I/O. For programming information, see MVME7100 Single Board Computer Programmer’s Reference.Local Bus Interface The MVME7100 uses the MC864xD Local Bus Controller (LBC) for access to on-board flash and I/O registers. The LBC has programmable timing modes to support devices of different access times, as well as device widths of 8, 16, and 32 bits. The MVME7100 uses the LBC in GPCM mode to interface to two physical banks of on-board flash, an on-board Quad UART (QUART), an MRAM, and on-board 32-bit timers along with control/status registers.
