Forum Discussion
Altera_Forum
Honored Contributor
15 years agoPIO Interrupts PCIe
Hello, i'm a student from germany and new in this forum. I have found many answers to my questions, but i stuck on a problem. i have the Cyclone IV GX Transceiver Starter Kit ...
Altera_Forum
Honored Contributor
15 years agoHi JacoL,
thanks for your reply! Thanks for your PIO Core PDF, but i already looked into the "Embedded peripherals user guide" and thought i understand everything. I know that i must clear the bit by writing to them. My Problem is where is the register? Because my PIO have a width of 2 bit, but in documentation there stands 32bit? "An Avalon-MM master peripheral, such as a CPU, controls and communicates with the PIO core via the four 32-bit registers, shown in Table 9–2. The table assumes that the PIO core's I/O ports are configured to a width of n bits." So for example my PIO is on adress 0x4000. interruptmask is on 0x4008 edgecapture is on 0x400C In Table 9-2 in looks like the register only have the width of 2 in my example. I think that's my main understanding problem. Thanks, ringo Ps: JacoL are you german?