Hardware/DRH: Difference between revisions
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|'''14''' || x || x || Crystal || Crystal || 5GHz D4 || 5GHz D5 || 5GHz D6 || 1v25 || GND || FLASH MOSI || FLASH MISO || FLASH CLK || 3v3 || to | |'''14''' || x || x || Crystal || Crystal || 5GHz D4 || 5GHz D5 || 5GHz D6 || 1v25 || GND || FLASH MOSI || FLASH MISO || FLASH CLK || 3v3 || to TP40 | ||
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|'''13''' || 3v3 || 3v3 || 3v3 || to TP190 || || 5GHz D2 || || 1v25 || GND || || FLASH CS || 3v3 || 3v3 || to TP179 | |'''13''' || 3v3 || 3v3 || 3v3 || to TP190 || || 5GHz D2 || || 1v25 || GND || || FLASH CS || 3v3 || 3v3 || to TP179 | ||
Revision as of 20:24, 23 April 2025
The DRH handles communication with up to two GamePads. It is similar to the DRC internally and communicates with IOSU through USB.
The DRH contains an ARM926EJ-S CPU which runs the LVC_ part of the firmware blob.
Pinout
This pinout is for the DRH-WUP only. The DRH-WUP-1 has a different pinout due to running off another voltage (1v1).
| 14 | x | x | Crystal | Crystal | 5GHz D4 | 5GHz D5 | 5GHz D6 | 1v25 | GND | FLASH MOSI | FLASH MISO | FLASH CLK | 3v3 | to TP40 |
| 13 | 3v3 | 3v3 | 3v3 | to TP190 | 5GHz D2 | 1v25 | GND | FLASH CS | 3v3 | 3v3 | to TP179 | |||
| 12 | GND (behind FIL39) | 3v3 | 3v3 | 5GHz D1 | 5GHz D3 | 1v25 | FLASH WP | 3v3 | FLASH RESET | |||||
| 11 | 1v25 (behind FIL37) | GND | GND | GND | GND | GND | 1v25 | to TP90/5GHz Pin 19 | to TP82, R678, then SoC | 3v3 | x | GND | ||
| 10 | 3v3 (behind FIL42) | 3v3 (behind FIL42) | GND | GND | GND | 1v25 | 1v25 | 1v25 | GND | 1v25 | 3v3 | 3v3 | ||
| 9 | Pulldown to FIL43 GND? | 3v3 (behind FIL42) | GND | 1v25 | 1v25 | 1v25 | GND | 1v25 | 3v3 | 3v3 | x | 3v3 | ||
| 8 | GND (behind FIL43) | GND (behind FIL43) | GND | GND | 1v25 | 1v25 | 3v3 | 3v3 | 3v3 | 3v3 | 3v3 | to TP104 | GND | |
| 7 | 3v3 | 3v3 | GND | GND | 1v25 | 1v25 | 3v3 | 3v3 | 3v3 | GND | to TP108 | to TP106 | ||
| 6 | USB D-(?) | 3v3 | GND | GND | 1v25 | 3v3 | 3v3 | GND | GND | 1v25 | x | |||
| 5 | USB D+(?) | GND | GND | 1v25 | 1v25 | 1v25 | 1v25 | 1v25 | GND | to SoC | 1v25 | 1v25 | ||
| 4 | GND | GND | to SoC | 1v25 | to SoC | to SoC | GND | 1v25 | to SoC (pulled up to 1v25) | |||||
| 3 | GND | GND | to SoC | 1v25 | GND | GND | GND | GND | to SoC | 1v25 | 1v25 | |||
| 2 | 3v3 | GND | to SoC | 1v25 | GND | to SoC | to SoC | to SoC | 1v25 | to TP192 | ||||
| 1 | GND | GND | to SoC | to SoC | 1v25 | GND | to SoC | to SoC | to SoC | to SoC | 1v25 | to SoC | 1v25 | to TP178 |
| A | B | C | D | E | F | G | H | I | J | K | L | M | N |