High-speed servo data interface system

A drive control integrated circuit comprising:

• a port coupled to an external data bus to communicate both user data and high-resolution servo data comprising data words with the external data bus;
• a combiner and memory element coupled to the port to receive the data words of the high-resolution servo data, to concatenate the received data words, and to store the concatenated data words;
• a user interface coupled to communicate the user data with a user;
• and
• a disk controller coupled to receive the concatenated data words of the high-resolution servo data and generate disk control signals to an external servo controlling position of a read/write head.

A read channel integrated circuit comprising:

• an encoder/decoder operational to receive and process user data;
• a servo burst detector operational to detect high-resolution servo position data;
• an analog-to-digital converter coupled to the servo burst detector and operational to convert high-resolution servo position data from analog to digital;
• a separator and memory mechanism coupled to the analog-to-digital converter and configured to separate the digital high-resolution data into data words and store the data words of the digital high-resolution servo position data;
• and
• a bus sharing mechanism coupled to the separator and memory mechanism and configured to selectively transfer the data words of the digital high-resolution servo data from the separator and memory mechanism and to selectively transfer user data from the encoder/decoder.