付録B Initial Configuration State of Expansion Interfaces
The initial states of the signal pins and pad configuration of the CON9, CON11 (Armadillo-440 only) and CON14 expansion interfaces are shown below.
表B.1 Signal State of Expansion Interfaces (After i.MX257 Reset)
| Connector | Pin Number | Signal Name | Signal State After Reset | On-board Pull-up |
|---|
| I/O | Pin State | Open Drain | Pull/Keeper |
|---|
| CON14 | 3 | EXT_IO22 | In | - | Disable | 100kΩPD[] | - |
| 4 | EXT_IO23 | In | - | Disable | Disable | - |
| CON9 | 1 | EXT_IO0 | Out | Low | Disable | Disable | - |
| 2 | EXT_IO1 | Out | Low | Disable | Disable | - |
| 3 | EXT_IO2 | In | - | Disable | 100kΩPU[] | - |
| 4 | EXT_IO3 | In | - | Disable | Keeper | - |
| 5 | EXT_IO4 | Out | Low | Disable | 100kΩPU | - |
| 6 | EXT_IO5 | In | - | Disable | Keeper | - |
| 11 | EXT_IO6 | In | - | Disable | 100kΩPU | - |
| 12 | EXT_IO7 | In | - | Disable | Keeper | - |
| 13 | EXT_IO8 | In | - | Disable | 100kΩPU | - |
| 14 | EXT_IO9 | In | - | Disable | Keeper | - |
| 15 | EXT_IO10 | In | - | Disable | Keeper | - |
| 16 | EXT_IO11 | In | - | Disable | Keeper | - |
| 17 | EXT_IO12 | In | - | Disable | Keeper | - |
| 18 | EXT_IO13 | In | - | Disable | Keeper | - |
| 21 | EXT_IO14 | Out | Low | Disable | Disable | - |
| 22 | EXT_IO15 | In | - | Disable | Keeper | - |
| 23 | EXT_IO16 | In | - | Disable | Keeper | - |
| 24 | EXT_IO17 | In | - | Disable | Keeper | - |
| 25 | EXT_IO18 | In | - | Disable | 100kΩPU | - |
| 26 | EXT_IO19 | In | - | Disable | 100kΩPU | - |
| 27 | EXT_IO20 | Out | Low | Disable | Disable | - |
| 28 | EXT_IO21 | In | - | Disable | Disable | - |
| CON11 | 8 | LCD_LSCLK | Out | Low | Disable | Disable | 47kΩPD |
| 9 | LCD_HSYN | Out | Low | Disable | Disable | 47kΩPD |
| 10 | LCD_VSYN | Out | Low | Disable | Disable | 47kΩPD |
| 11 | LCD_OE_ACD | Out | Low | Disable | Disable | 47kΩPD |
| 12 | PWMO1 | In | - | Disable | 100kΩPD | 47kΩPD |
| 13 | LCD_LD0 | Out | Low | Disable | Disable | 47kΩPD |
| 14 | LCD_LD1 | Out | Low | Disable | Disable | 47kΩPD |
| 15 | LCD_LD2 | Out | Low | Disable | Disable | 47kΩPD |
| 16 | LCD_LD3 | Out | Low | Disable | Disable | 47kΩPD |
| 17 | LCD_LD4 | Out | Low | Disable | Disable | 47kΩPD |
| 18 | LCD_LD5 | Out | Low | Disable | Disable | 47kΩPD |
| 20 | LCD_LD6 | Out | Low | Disable | Disable | 47kΩPU |
| 21 | LCD_LD7 | Out | Low | Disable | Disable | 47kΩPD |
| 22 | LCD_LD8 | Out | Low | Disable | Disable | 47kΩPD |
| 23 | LCD_LD9 | Out | Low | Disable | Disable | 47kΩPD |
| 24 | LCD_LD10 | Out | Low | Disable | Disable | 47kΩPD |
| 25 | LCD_LD11 | Out | Low | Disable | Disable | 47kΩPD |
| 27 | LCD_LD12 | Out | Low | Disable | Disable | 47kΩPD |
| 28 | LCD_LD13 | Out | Low | Disable | Disable | 47kΩPD |
| 29 | LCD_LD14 | Out | Low | Disable | Disable | 47kΩPU |
| 30 | LCD_LD15 | Out | Low | Disable | Disable | 47kΩPU |
| 31 | LCD_LD16 | In | - | Enable | 100kΩPU | - |
| 32 | LCD_LD17 | In | - | Disable | Disable | - |
| 39 | EXT_IO24 | In | - | Disable | 47kΩPU | - |
| 40 | EXT_IO25 | In | - | Disable | 100kΩPU | - |
| 41 | EXT_IO26 | In | - | Disable | 100kΩPU | - |
| 42 | EXT_IO27 | In | - | Disable | 100kΩPU | - |
| 43 | EXT_IO28 | In | - | Disable | 100kΩPU | - |
| 44 | EXT_IO29 | In | - | Enable | 100kΩPU | - |
| 45 | EXT_IO30 | In | - | Enable | 100kΩPU | - |
| 46 | EXT_IO31 | In | - | Enable | 100kΩPU | - |
| 47 | EXT_IO32 | In | - | Enable | 100kΩPU | - |
| 48 | EXT_IO33 | In | - | Disable | Disable | - |
| 49 | EXT_IO34 | In | - | Disable | 100kΩPD | - |
表B.2 Signal State of Expansion Interfaces (After Bootloader Configuration)
| Connector | Pin Number | Signal Name | Signal State After Bootloader Boot[] |
|---|
| Mux Mode | I/O | Pin State | Open Drain | Pull/Keeper | Slew Rate |
|---|
| CON14 | 3 | EXT_IO22 | GPIO | In | - | Disable | 100kΩPU | Slow |
| 4 | EXT_IO23 | GPIO | In | - | Disable | 100kΩPU | Slow |
| CON9 | 1 | EXT_IO0 | GPIO | In | - | Disable | 100kΩPU | Slow |
| 2 | EXT_IO1 | GPIO | In | - | Disable | 100kΩPU | Slow |
| 3 | EXT_IO2 | GPIO | In | - | Disable | 100kΩPU | Slow |
| 4 | EXT_IO3 | GPIO | In | - | Disable | 100kΩPU | Slow |
| 5 | EXT_IO4 | GPIO | In | - | Disable | 100kΩPU | Slow |
| 6 | EXT_IO5 | GPIO | In | - | Disable | 100kΩPU | Slow |
| 11 | EXT_IO6 | GPIO | In | - | Disable | 100kΩPU | Slow |
| 12 | EXT_IO7 | GPIO | In | - | Disable | 100kΩPU | Slow |
| 13 | EXT_IO8 | GPIO | In | - | Disable | 100kΩPU | Slow |
| 14 | EXT_IO9 | GPIO | In | - | Disable | 100kΩPU | Slow |
| 15 | EXT_IO10 | GPIO | In | - | Disable | 100kΩPU | Slow |
| 16 | EXT_IO11 | GPIO | In | - | Disable | 100kΩPU | Slow |
| 17 | EXT_IO12 | GPIO | In | - | Disable | 100kΩPU | Slow |
| 18 | EXT_IO13 | GPIO | In | - | Disable | 100kΩPU | Slow |
| 21 | EXT_IO14 | GPIO | In | - | Disable | 100kΩPU | Slow |
| 22 | EXT_IO15 | GPIO | In | - | Disable | 100kΩPU | Slow |
| 23 | EXT_IO16 | GPIO | In | - | Disable | 100kΩPU | Slow |
| 24 | EXT_IO17 | GPIO | In | - | Disable | 100kΩPU | Slow |
| 25 | EXT_IO18 | GPIO | In | - | Disable | 100kΩPU | Slow |
| 26 | EXT_IO19 | GPIO | In | - | Disable | 100kΩPU | Slow |
| 27 | EXT_IO20 | GPIO | Out | Low | Disable | Disable | Fast |
| 28 | EXT_IO21 | GPIO | Out | Low | Disable | Disable | Fast |
| CON11 | 8 | LCD_LSCLK | LCD | Out | Low | Disable | Disable | Fast |
| 9 | LCD_HSYN | LCD | Out | Low | Disable | Disable | Slow |
| 10 | LCD_VSYN | LCD | Out | Low | Disable | Disable | Slow |
| 11 | LCD_OE_ACD | LCD | Out | Low | Disable | Disable | Slow |
| 12 | PWMO1 | PWMO1 | Out | Low | Disable | 100kΩPU | Slow |
| 13 | LCD_LD0 | LCD | Out | Low | Disable | Disable | Slow |
| 14 | LCD_LD1 | LCD | Out | Low | Disable | Disable | Slow |
| 15 | LCD_LD2 | LCD | Out | Low | Disable | Disable | Slow |
| 16 | LCD_LD3 | LCD | Out | Low | Disable | Disable | Slow |
| 17 | LCD_LD4 | LCD | Out | Low | Disable | Disable | Slow |
| 18 | LCD_LD5 | LCD | Out | Low | Disable | Disable | Slow |
| 20 | LCD_LD6 | LCD | Out | Low | Disable | Disable | Slow |
| 21 | LCD_LD7 | LCD | Out | Low | Disable | Disable | Slow |
| 22 | LCD_LD8 | LCD | Out | Low | Disable | Disable | Slow |
| 23 | LCD_LD9 | LCD | Out | Low | Disable | Disable | Slow |
| 24 | LCD_LD10 | LCD | Out | Low | Disable | Disable | Slow |
| 25 | LCD_LD11 | LCD | Out | Low | Disable | Disable | Slow |
| 27 | LCD_LD12 | LCD | Out | Low | Disable | Disable | Slow |
| 28 | LCD_LD13 | LCD | Out | Low | Disable | Disable | Slow |
| 29 | LCD_LD14 | LCD | Out | Low | Disable | Disable | Slow |
| 30 | LCD_LD15 | LCD | Out | Low | Disable | Disable | Slow |
| 31 | LCD_LD16 | LCD | Out | Low | Disable | 100kΩPU | Slow |
| 32 | LCD_LD17 | LCD | Out | Low | Disable | 100kΩPU | Slow |
| 39 | EXT_IO24 | GPIO | In | - | Disable | 47kΩPU | Slow |
| 40 | EXT_IO25 | GPIO | In | - | Disable | 100kΩPU | Slow |
| 41 | EXT_IO26 | GPIO | In | - | Disable | 100kΩPU | Slow |
| 42 | EXT_IO27 | GPIO | In | - | Disable | 100kΩPU | Slow |
| 43 | EXT_IO28 | GPIO | In | - | Disable | 100kΩPU | Slow |
| 44 | EXT_IO29 | GPIO | In | - | Disable | 100kΩPU | Slow |
| 45 | EXT_IO30 | GPIO | In | - | Disable | 100kΩPU | Slow |
| 46 | EXT_IO31 | GPIO | In | - | Disable | 100kΩPU | Slow |
| 47 | EXT_IO32 | GPIO | In | - | Disable | 100kΩPU | Slow |
| 48 | EXT_IO33 | GPIO | In | - | Disable | 100kΩPU | Slow |
| 49 | EXT_IO34 | GPIO | In | - | Disable | 100kΩPU | Slow |
