
Appendix E: Programming the SPI-4.2 Calendar via the Avalon Memory-Mapped Interface E–3
Programming the SPI-4.2 Calendar
December 2014 Altera Corporation POS-PHY Level 4 IP Core User Guide
The SPI-4.2 calendar is now programmed.
1 You can select the active calendar at runtime via the receiver’s
CALSEL_REQ
field (the
transmitter switches calendars based on the value of the calendar select word in the
incoming status channel).
1 Calendar tables may be updated whenever the status channel is inactive, or when the
calendar to be modified is not the active calendar (calendar 1 can be adjusted while
calendar 0 is active; calendar 0 can be adjusted while calendar 1 is active).
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