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GSModeSelector can switch from 480i to 480p. Maybe experiment with it?

SA6 and SA7 can also be removed. Works without them. I figured out the data exchange from eeprom and the clock. The /INT5 signal is required to request a power down. Then permission to turn off arrives. It is possible without it, but data loss is likely when writing to the media.

I started to develop the replacement of CXD3098Q and CXR726 with epm240t100c5. The stub functions will be in epm240t100c5. The functions of the CXR726 will be performed by an STM32 connected via the SPI bus to the epm240t100c5. Data request from STM32 will be interrupted. The RP2040 is not...

esp32 has 2 cores at 240MHz. SMB NAS will be on it.

I meant another function. Wi-Fi for the network, bluetooth for headphones and removing the BCM5241 chip from the circuit.

I think you will understand what this link is about. And where to apply it. https://www.esp32.com/viewtopic.php?t=5601 BCM5241 I'm not sure the pinout is 100% correct

I was looking for a way to remove two chips. But I accidentally solved other problems and decided to write to you about the results. I will gnaw out these two uncomfortable microcircuits with my teeth. They are redundant. But we need to come up with a way to bypass the binding. This will allow...

If you look in the datasheet for the MX23L6414, you can see that the numbering of the CE pins starts from 0. In the PS2 ROM, CE1 and CE2. I am sure that there is an address decoder inside the ROM which activates CE0 when using a specific address space. It is not correct to use inverted /CS5 due...

In model GH-40-52 ROM MX23L6400AYC-10G 100ns. I soldered in GH-72-42 MX29LV320ATTC-90 90ns. Works!

MX29LV320ETTI-70G Valid data output after address 70ns Valid data output after CE# low 70ns !!! Valid data output after OE# low 30ns !!! Why shouldn't it work? Data output floating after OE# high 30 ns

79XXX to 90000 should work.

You can try to get rid of the CXD3098Q and CXR726080. First you need to try after initialization to disable the /CS_3098 signal from the CXD3098Q and pull up from the CXR726080. After check the launch of the games.

I suspect a mistake in my previous post. ROM mx23l6400 consists of two parallel parts. /CS2 enables the first ROM.

If CE1 and CE2 are used, and you need one output, why not use 74hc32 for merging?