★ FAQ ★ Development environment
22000000h + ----------------------- +
| |
| |
| |
| External ROM |
| |
| |
| |
24000000h + ----------------------- +
| SIMM |
| BANK 0 |
| (16M byte) |
25000000h + ----------------------- +
| reserved |
25800000h + ----------------------- +
| External I / O |
25FFFFFFh + ----------------------- +
22000000h + ----------------------- +
| SIMM |
| BANK 0 |
| (16MByte) |
+ ----------------------- +
| SIMM |
| BANK 1 |
| (16MByte) |
24000000h + ----------------------- +
| |
| External RAM |
| |
25000000h + ----------------------- +
| reserved |
25800000h + ----------------------- +
| External I / O |
25FFFFFFh + ----------------------- +
To explain in a little more detail, many monitors designed for business use are also designed for the purpose of monitoring irregular signals, so in some lots of Programming Boxes, the frequency shift of the color synchronization signal (chroma subcarrier) Has been confirmed to be black and white.
Of course, this is not the case with the models currently shipping, but if you experience such symptoms with a Programming Box purchased in the past, please contact Sega. It may be fixed by adjusting the output circuit.
★ FAQ ★ Development environment