通过EI²OS驱动串口IO

通过EI²OS驱动串口IO

Fujitsu Microelectronics Europe MCU-AN-390021-E-V10




Application Note

Notes on using Serial IO driven by EIOS

Fujitsu Mikroelektronik GmbH
Vers. 1.0 by Holger Lsche


Introduction
If EIOS (Extended Intelligent IO Service) and SIO (Serial IO) are used together, several points have to be taken
in consideration:
- When does start the SIO transfer?
- When and how is the SIO interrupt request reset?
- When and how does the EIOS reset the SIO interrupt request?

Following explanation supposes that the global interrupt enable bit I is set and the interrupt control register of
SIO