Editing MechaCon
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The earlier one is based on the 16-bit SPC970 CPU core, running at 33.8688 Mhz, and was used on earlier boards up to GH-022. Chip name starts with "CXP10". GH-014 and earlier motherboards including GH-016 board come with a 100-pin QFP package. GH-017 up to GH-022 motherboards including GH-015 board come with a 136-ball BGA package. | The earlier one is based on the 16-bit SPC970 CPU core, running at 33.8688 Mhz, and was used on earlier boards up to GH-022. Chip name starts with "CXP10". GH-014 and earlier motherboards including GH-016 board come with a 100-pin QFP package. GH-017 up to GH-022 motherboards including GH-015 board come with a 136-ball BGA package. | ||
The newer one is ARM-based (Sony SR11 core, 32-bit, ARM7TDMI, running ARM v4t little endian using both 32-bit ARM and 16-bit Thumb code), codenamed "Dragon", and used from GH-023 onwards. Chip name starts with "CXR7". Comes in a 164-ball BGA package | The newer one is ARM-based (Sony SR11 core, 32-bit, ARM7TDMI, running ARM v4t little endian using both 32-bit ARM and 16-bit Thumb code), codenamed "Dragon", and used from GH-023 onwards. Chip name starts with "CXR7". Comes in a 164-ball BGA package. | ||
The "Dragon" variant also fulfills the functions that were undertaken by the separate [[SysCon]] chip on earlier boards up to GH-022, as well as the [[RTC]]+EEPROM chip, which was separate on earlier boards (or dedicated EEPROM and RTC chips on even earlier boards). | The "Dragon" variant also fulfills the functions that were undertaken by the separate [[SysCon]] chip on earlier boards up to GH-022, as well as the [[RTC]]+EEPROM chip, which was separate on earlier boards (or dedicated EEPROM and RTC chips on even earlier boards). | ||