Opal Interface Signals
This section details all of the signals that interface to the Opal CPU Module.
As far as possible, each interface signal name matches the name for that signal on the i.MX53 or DA9053.
When designing with Opal, you should use the IOMux tool from Freescale to plan how you will use the i.MX53 signals. The Opal Product Page on devicesolutions.net includes a link to the tool, along with files which describe the pins that are available on the Opal module interface.
For detailed information on each signal, please refer to the Freescale documentation.
Signal Descriptions
The following table includes:
Pin location: Refer to the table following for a map of all pads.
Voltage: Most GPIO signals are 3.3V or 1.8V, but not all.
Name: This corresponds with the pins name on the originating device on the module.
GPIO: This column lists the i.MX53 GPIO number for signals that include this capability.
Notes. This may include a brief description or specific advice around interfacing to the signal. For a detailed description, consult the Freescale i.MX53 documentation.
Pad | Voltage | Name | GPIO | Notes |
|---|---|---|---|---|
Power |
|
|
|
|
B-159 -168 |
| DCIN | - | Main power in from DC supply. |
A-1 to 4, |
| VBUS | - | Alternate power in. Connect to USB power. |
A6-10, |
| VBAT | - | Battery connection. Use single cell Li-Ion. |
| 0V | 0V | - | GND |
B-19 –B-21 | 3.3V | DCDC_3V3 | - | 3.3V supply output from the module. |
B-16 | - | VBUCKCORE | - | Use as pull-up for power button only. |
B-14 | - | VBUCKPRO | - | For test only – do not use |
B-5 | - | VBUCKPERI | - | For test only – do not use |
B-15 | - | VBUCKMEM | - | For test only – do not use |
B-2 | - | VLDO1_1V3 | - | For test only – do not use |
B-7 | - | VLDO2_1V2 | - | For test only – do not use |
B-8 | 3.3V | VLDO3_3V3 | - | 3.3V supply from module |
B-3 | 2.775V | VLDO4_2V775 | - | LCD Logic supply. |
B-6 | - | VLDO5_1V2 | - | For test only – do not use |
B-1 | - | VLDO6_1V2 | - | For test only – do not use |
B-9 | - | VLDO7_2V75 | - | For test only – do not use |
B-11 | 1.8V | VLDO8_1V8 | - | 1.8V supply from the module. |
B-13 | - | VLDO9_1V5 | - | For test only – do not use |
B-12 | - | VLDO10_1V25 | - | For test only – do not use |
B-10 | - | VDDOUT | - | For test only – do not use |
B-4 |
| VBBAT | - | Backup battery connection. Coin-Cell or Super-Cap |
B-17 | - | DDR_REF | - | For test only – do not use |
B-22 | 3.3V | FEC_3V3 | - | Ethernet supply. |
B-18 | - | VPERI_SW | - | For test only – do not use |
i.MX53 Control Signals |
|
|
|
|
B-33 | 1.8V | nRESET | - | Module reset. Connects to the POR reset signal of the i.MX53. |
B-146 |
| PMIC_ON_REQ | - |
|
B-149 |
| PMIC_STBY_REQ | - |
|
B-52 |
| BOOT_MODE0 | - | Refer to the Design with Opal section for the setup of these two signals |
B-53 |
| BOOT_MODE1 | - |
|
DA9053 PMIC Signals |
|
|
|
|
B-143 |
| PWR_UP | - | Power up sequence indicator output. |
B-32 |
| nSHUTDOWN | - | Active low input from switch or error indication from host to initiate shutdown. |
B-140 |
| TP | - | Test point for setting PMIC in test mode. |
B-136 |
| SYS_UP | - | Power up sequence indicator output. |
B-139 |
| ACC_ID_DET/ | - | Accessory detection |
B-131 |
| GP_FB1/ | - | Status indicator for valid Wakeup event |
B-132 |
| nVDD_FAULT/ | - | Indicates the supply voltage is low. Connected to GPIO_5 on the module. |
B-141 |
| nONKEY/ | - | Power button input |
B-138 |
| DATA/GPIO14 | - | Test mode communications |
B-137 |
| CLK/GPIO15 | - |
|
B-142 |
| PWR1_EN/ | - | Hardware output of power domain. |
B-133 |
| PWR_EN/ | - | Hardware output of power domain. |
B-135 |
| nIRQ | - | Interrupt from the DA9053. Connected to GPIO_16 on the module. |
B-134 |
| SYS_EN/GPIO8 | - | Hardware enable of power domain |
B-156 |
| PMIC_D+ | - | USB interface for use with VBUS input |
B-155 |
| PMIC_D- | - |
|
USB |
|
|
|
|
B-78 | Analog | USB_H1_DP | - | High Speed USB Host Data+ |
B-79 | Analog | USB_H1_DN | - | High Speed USB Host Data- |
B-83 |
| USB_H1_VBUS | - |
|
B-76 | Analog | USB_OTG_DP | - | High speed USB OTG Data+ |
B-77 | Analog | USB_OTG_DN | - | High speed USB OTG Data- |
B-82 |
| USB_OTG_VBUS | - | USB OTG |
B-81 |
| USB_OTG_ID | - | USB OTG ID |
Ethernet |
|
|
|
|
A-83 | Analog | ETHERNET_TX+ | - | 10/100 Ethernet interface signals. Connect to magnetics. |