Confused with Remote Configuration

[Altera_Forum]

My board has Stratix II , EPCS64 device and RS422 UART on it, RS422 UART is used for comunication with PC. I try to build design that will remotely update and trigger the reconfiguration of Stratix II, the configuration is stored in EPCS64. 

 At this point I want to avoid using NIOS for remote configuration,  so the simple design I had in my mind was to build custom logic that will look something like that:    *) EPCS64 will accommodate the factory image and the user configuration image.    *) The PC will send the new user configuration image over UART RS422, custom logic will write the image to EPCS at the right address.   *) The custom logic will be comprised of interface to PC, interface to EPCS and simple control logic to control transaction to EPCS.   *) The reconfiguration process will be done using ALTREMOTE_UPDATE megafunction.     But now I am confused :confused: with the following essue:   ALTREMOTE_UPDATE generates "pgm" signal to select the image for the configuration. EPCS do not have those "pgm" pins, so I have to build logic that decode\translates "pgm" signal to sector address on EPCS, However it seems as "pgm" signals genereted by ALTREMOTE_UPDATE are not accessable to the logic inside the FPGA, so is there no way to decode "pgm" without external logic?    Thank you.

[Altera_Forum]

You can avoid the generating of the pgm pins by specifying the ACTIVE_SERIAL_REMOTE operation mode in the MegaWizard. Refer to the Remote Update Circuitry (ALTREMOTE_UPDATE) Megafunction User Guide page 2-3 

(see altera page subdirectory /literature/ug/ug_altremote.pdf) For reconfigure the Stratix with application image you have to write the epcs sector address (where is your user configuration stored) to the page select parameter of remote update function. Then assert a "1" to the reconfig pin.  Jens