Last week, I have briefly go through the types of registers within our chipset. This week we will go through the common registers. So the figures below shows an overview of our common registers.
The Mode Register: This is used for soft reset, enabling indirect bus mode, and other modes
Gateway Address Register: This is where the gateway IP address is stored
Subnet Mask Register: This is where the subnet mask is tored
MAC Address Regiter: This register is for storing the MAC address of the device. Notice that the first byte must be a even number. You should register your own MAC address with IEEE before using a MAC address to prevent collision.
Server IP Register: This is where the IP address of the device is stored.
Interrupt Register: This is for checking which interrupt is occuring
Interrupt Mask Register: This is used for enabling various interrupts
Retry Time Register: This sets the number of 100us before our chipset attempts to resend. Besure to set this value to longer if your network is slow to avoid any packets duplication.
Retry Count Register: This sets the number of tries before the connection times out.
We will go through part two of the common registers next week!
See you :)
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