| 3xQUP v3 serial engine | |||
| Serial engine instances | QUPV3_0 | QUPV3_1 | QUPV3_2 |
| Application processor QUP v3 serial engine | 8 | 8 | 8 |
| LPI QUP v3 serial engine | 9 | – | – |
| USB controller details | |||
| PCIe controller details | |||
QUP v3 mapping to protocols and GPIOs in Dragonwing IQ-X7181
Dragonwing IQ-X7181 contains 33 QUP v3 serial engines. Of these, 24 QUP v3 serial engines are allocated for the application processor and 9 QUP v3 serial engines are allocated for the low-power island (LPI). Select only one protocol in a QUP v3 serial engine at a time. For example, simultaneous UART and I2C functions aren’t supported. The top-level QUP v3 serial engines are used by the application processor and boot image. The LPI QUP v3 serial engines are used by the sensor subsystem. The following table lists the default QUP v3 mapping to protocols and GPIOs. Table : Dragonwing IQ-X7181 QUP v3 serial engine protocol mapping| QUP v3 serial engine | Protocols | QUP lane to GPIO mapping | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UART | HS UART | I2C-M | SPI-M | L0 | L1 | L2 | L3 | L4 | L5 | L6 | ||
| QUP_0 | SE0 | Yes | Yes | Yes | Yes | 0 | 1 | 2 | 3 | – | – | – |
| SE1 | Yes | Yes | Yes | Yes | 4 | 5 | 6 | 7 | – | – | – | |
| SE2 | Yes | Yes | Yes | Yes | 8 | 9 | 10 | 11 | 17 | 18 | 19 | |
| SE3 | Yes | Yes | Yes | Yes | 12 | 13 | 14 | 15 | 23 | 22 | 21 | |
| SE4 | Yes | Yes | Yes | Yes | 16 | 17 | 18 | 19 | – | – | – | |
| SE5 | Yes | Yes | Yes | Yes | 20 | 21 | 22 | 23 | – | – | – | |
| SE6 | Yes | Yes | Yes | Yes | 24 | 25 | 26 | 27 | – | – | – | |
| SE7 | Yes | Yes | Yes | Yes | 14 | 15 | 12 | 13 | – | – | – | |
| QUP_1 | SE0 | Yes | Yes | Yes | Yes | 32 | 33 | 34 | 35 | – | – | – |
| SE1 | Yes | Yes | Yes | Yes | 36 | 37 | 38 | 39 | – | – | – | |
| SE2 | Yes | Yes | Yes | Yes | 40 | 41 | 42 | 43 | 49 | 50 | 51 | |
| SE3 | Yes | Yes | Yes | Yes | 44 | 45 | 46 | 47 | 35 | 34 | 33 | |
| SE4 | Yes | Yes | Yes | Yes | 48 | 49 | 50 | 51 | – | – | – | |
| SE5 | Yes | Yes | Yes | Yes | 52 | 53 | 54 | 55 | – | – | – | |
| SE6 | Yes | Yes | Yes | Yes | 56 | 57 | 58 | 59 | – | – | – | |
| SE7 | Yes | Yes | Yes | Yes | 54 | 55 | 52 | 53 | – | – | – | |
| QUP_2 | SE0 | Yes | Yes | Yes | Yes | 64 | 65 | 66 | 67 | – | – | – |
| SE1 | Yes | Yes | Yes | Yes | 68 | 69 | 70 | 71 | – | – | – | |
| SE2 | Yes | Yes | Yes | Yes | 72 | 73 | 74 | 75 | 81 | 82 | 83 | |
| SE3 | Yes | Yes | Yes | Yes | 76 | 77 | 78 | 79 | 67 | 66 | 65 | |
| SE4 | Yes | Yes | Yes | Yes | 80 | 81 | 82 | 83 | – | – | – | |
| SE5 | Yes | Yes | Yes | Yes | 84 | 85 | 86 | 87 | – | – | – | |
| SE6 | Yes | Yes | Yes | Yes | 88 | 89 | 90 | 91 | – | – | – | |
| SE7 | Yes | Yes | Yes | Yes | 86 | 87 | 84 | 85 | – | – | – | |
| LPI_QUP | SE0 | – | – | Yes | – | 215 | 216 | – | – | – | – | – |
| SE1 | Yes | – | Yes | Yes | 217 | 218 | 231 | 232 | – | – | – | |
| SE2 | Yes | – | Yes | Yes | 219 | 220 | 221 | 222 | 223 | – | – | |
| SE3 | – | – | Yes | – | 223 | 224 | – | – | – | – | – | |
| SE4 | – | – | Yes | Yes | 225 | 226 | 227 | 228 | 221 | 222 | – | |
| SE5 | Yes | – | – | – | – | – | 229 | 230 | – | – | – | |
| SE6 | Yes | – | Yes | – | 231 | 232 | 231 | 232 | – | – | – | |
| SE7 | – | – | Yes | – | 233 | 234 | – | – | – | – | – | |
| SE8 | – | – | Yes | – | 235 | 236 | – | – | – | – | – | |