You can obtain the device support package for the P89LPC935 chip model by following these steps:
1. **Official Manufacturer Website**: Check the NXP Semiconductors website, as they are the manufacturer of the LPC series microcontrollers. Look for their legacy product section or contact their support for assistance.
2. **Development Tools**: If you have a specific development environment in mind (like Keil or IAR), visit the respective tool's website, as they often have support packages for various microcontrollers.
3. **Community Forums**: Consider posting in relevant online forums or communities (like NXP Community or Stack Overflow) where developers discuss LPC microcontrollers. Someone might have the package or know where to find it.
4. **Contact Support**: If you can't find the package, consider reaching out directly to NXP’s customer support for assistance in locating the device support package for the P89LPC935.
5. **Third-party Resources**: Look for third-party vendors or libraries that might have support for the P89LPC935, as some developers create additional resources for less common devices.
