What is the difference between PDIUSBD11 and PDIUSBD12?
PDIUSBD11 offers an IC interface to any microcontroller. The operating speed of the IC interface can be up to 1 Mbit/sec. It has a total of 4 endpoints, including the default endpoint 0. Each of the endpoints is bi-directional with a buffer size of 8 bytes. The 8-byte buffer size and the simple IC connectivity make it suitable for (not restricted to) applications such as multi-function keyboards, high-end joystick (forced feedback), monitor control and other HID-based systems. PDIUSBD12, on the other hand, offers a generic parallel interface to any microcontroller. This allows faster access time of up to 2 Mbyte/sec. There are 3 bi-directional endpoints including the default endpoint 0. The buffer size is 16 bytes for endpoint 0 and 1, and a double buffered 64 bytes (Bi-directional mode) for endpoint 2. Endpoint 2 is also configured to work as an IN only endpoint or a OUT only endpoint. In addition, Endpoint 2 can be used for Isochronous, Bulk or Interrupt operation. The D12 would be a