Hello,

I am writing the firmware for the W81E381AD (winbond 8052 based microcontroller with a usb controller integrated) but I can't
read its new SFRs for USB when I map them like this (for example):

sfr at 0xE2 RXSTAT; // Endpoint receive status

...

unsigned char aux;

aux=RXSTAT;

But now, aux stores 0xE2 (this is the RXSTAT address) instead of RXSTAT's value. And the same happens with all usb sfr (but it works well with 8052 sfrs).

PS: I use SDCC.

Thank you,

Javier