Users Guide: Network Microcontroller Supplement User Manual

High-Speed Microcontroller User’s

Guide: Network Microcontroller

Supplement

212

arp_checkcache

This function checks whether the system has an ARP cache entry for a specified IPv4 address.

netnat_subnet_to_prefix

This function calculates prefix length from an IPv4 subnet mask.

Example: 255.255.255.0 is conver

ted to 24.

unbind

This function unbinds a UDP socket from a local port.

math_mul1024

This function multiplies a 32-bit integer by 1024. This function does not use the math accelerator.

math_div2

This function divides a 32-bit integer by 2. This function does not use the math accelerator.

math_div1024

This function divides a 32-bit integer by 1024. This function does not use the math accelerator.

math_longdiv1024

This function divides a 40-bit integer by 1024. This function does not use the math accelerator.