Dr. D'nar: Created page with "51 - USB Enable Timer USB Enable Timer {{84P-Only Port|01}} == Synopsis == '''Port Number:''' 51h '''Fu..."

2020-03-04T01:05:37Z

Created page with "51 - USB Enable Timer USB Enable Timer {{84P-Only Port|01}} == Synopsis == '''Port Number:''' 51h '''Fu..."

New page

[[Category:83Plus:Ports:By Address|51 - USB Enable Timer]] [[Category:83Plus:Ports:By Name|USB Enable Timer]]
{{84P-Only Port|01}}
== Synopsis ==
'''Port Number:''' 51h

'''Function:''' USB Enable Timer

USB timing comes from a separate 48 MHz crystal. This crystal is normally left disabled unless USB is being used. After starting the crystal, this port controls how long the hardware waits before enabling the USB hardware. Counts in 2-tick increments from the 32768 Hz crystal.

83Plus:Ports:51 - Revision history

Dr. D'nar: Created page with "51 - USB Enable Timer USB Enable Timer {{84P-Only Port|01}} == Synopsis == '''Port Number:''' 51h '''Fu..."