Arch Link is an mbed enabled development board based on Nordic nRF51822 and WIZnet W5500 ethernet interface. With Arduino form factor, Grove connectors and micro SD interface, it is extremely easy to create a bluetooth low energy device.
WIZnet WIZwiki Platform based on WIZnet’s MCU. WIZnet WIZwiki-W7500P is a WIZwiki platform board based on W7500P. The IOP4IoT W7500P chip is the one-chip solution which integrates an ARM Cortex-M0, 128KB Flash, hardwired TCP/IP core for various embedded application platform, 10/100 Ethernet MAC and PHY, and especially internet of things. The TCP/IP core is a market-proven hardwired TCP/IP stack and PHY is IC plus IP101G, an IEEE 802.3/802.3u Fast Ethernet Transcevier for 10/100Mbps. The Hardwired TCP/IP stack supports the TCP, UDP, IPv4, ICMP, ARP, IGMP and PPPoE which has been used in various applications for more than 15 years. W7500P suits users who need Internet connectivity best.
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We will learn about WIZnet W7500 system and memory in this chapter.
Specifically, We will learn about WIZnet W7500 system Architecture and system configuration controller for WIZnet W7500 system part.
We will also learn about WIZnet W7500 memory organization and memory map for WIZnet W7500 memory part.
Main system consists of:
Internal BOOT ROM
Internal Flash Memory
Two AHB2APB bridge which connects all APB peripherals
Four AHB dedicated to 16-bit GPIOs
TCPIP Hardware core
AHB-Lite BUS – This bus connects the two masters (Cortex-M0 and uDMAC) and ten AHB slaves. Two APB BUSs – These buses connect Seventeen APB peripherals (Watchdog, two dual timers, pwm, two UARTs, simple UART, two I2Cs, two SSPs, random number generator, real time clock, 12bits analog digital converter, clock controller, IO configuration, PAD MUX controller)
Program memory, data memory, registers and I/O ports are organized within the same linear 4-Gbyte address space. The bytes are coded in memory in Little Endian format. The lowest numbered byte in a word is considered the word’s least significant byte and the highest numbered byte the most significant.
System Configuration Controller (SYSCFG)
Main purposes of the system configuration controller are the following
Control of the memory remap feature
The ability to enable an automatic reset if the system locks up