The time you came up is way off. It will be like 1-2 min max in x4 mode.
Here is a list of simulated write with the commands send over the bus.
Chipid id used to identify the chip. It is always intel in these PCMs, the tool decides how to proceed if the chip is not correct. I guess the amd id is there so there isn`t a crash response if you try to program the wrong pcm. There isn`t any amd code to handle erase and write of amd chips.
Erase is done in 2 parts. First set all bits to 1. Second part turns all to 0 and than to 1. Something with intel quick erase. The routine manages erase exactly by the data in intel flash chip manual.
Note that each flash routines like erase, vpp, checksum, chipid and so on are loaded at 1810 buffer one by one. The bin upload buffer is at 1b00. The flash routine have built in $500 bytes length message.
The header before each uploaded block is
BD 18 1D 20 00 04 00
18ad is the start address of write routine.
2000 is the address where data will be programmed
0400 is the length of the data to be programmed
Usually 0-1fff area is not programmed at all. That also includes bank2 0-8000 area. Total data transferred is 88kb for tside.
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