| Pin | Description |
|---|---|
| +3.3V | Input the power supply of 3.3V DC to this pin. Make sure the DC voltage is in the range of 3.15V ~ 3.45V. It is recommended to use a power supply capable of supplying more than 500mA current while stable output of DC 3.3V for the stable operation of the module. |
| GND | Connect the ground of your main system to this pin. It is recommended that the ground is as wide as possible to shorten the path of return signal. |
| RESET# | This pin is used to restart the system. If you enter a LOW pulse of 1 millisecond (1ms) or more to this pin, the system will restart. Since this pin is LOW Active, normally it should keep it high state(It is internally pulled up with a 10K ohm resistor.) |
| ISP# | ISP# is the pin used to put the product into ISP mode. ISP mode is a necessary mode for system maintenance such as Escaping infinite reset state. Since this pin is LOW Active, normally it should keep it high state(It is internally pulled up with a 10K ohm resistor.) |
| VBAT | Connect the battery to VBAT so that the built-in RTC time information and back up SRAM contents are not erased when power is not applied. Connect this pin to +3.3V if you do not use any battery. The allowable voltage is DC 1.65V to DC 3.6V. |
| Pin# | Name | I/O | Description |
|---|---|---|---|
| P1.3 | TPTX+ | In/Out | Ethernet Transmit + |
| P1.4 | TPTX- | In/Out | Ethernet Transmit - |
| P1.5 | TPRX+ | In/Out | Ethernet Receive + |
| P1.6 | TPRX- | In/Out | Ethernet Receive - |
P4M-440G provides 10/100Base-TX Ethernet Interface. Note that RJ45 connector is required to use Ethernet. Refer to a circuit diagram of the Application Circuit Diagram for the connection.
| Pin# | Name | I/O | Description |
|---|---|---|---|
| P1.7 | VBUS | In | USB Device VBUS |
| P1.8 | USB_D_D- | In/Out | USB Device Data - |
| P1.9 | USB_D_D+ | In/Out | USB Device Data + |
This port must be interfaced for product development and configuration. After connecting this port and connecting the product with PC via a USB cable, you can access the product using the development tool (PHPoC Debugger). Either type B USB connector, mini USB or micro USB connector can be used for this port.
※ Note: The VBUS pin cannot be used for supplying power to P4M-440G.
| Pin# | Name | I/O | Description |
|---|---|---|---|
| P2.2 | NSS(0.0) | In/Out | UIO 0.0 / SPI NSS |
| P2.3 | SCK(0.1) | In/Out | UIO 0.1 / SPI SCK |
| P2.4 | MISO(0.2) | In/Out | UIO 0.2 / SPI MISO |
| P2.5 | MOSI(0.3) | In/Out | UIO 0.3 / SPI MOSI |
| P2.6 | U0TX(0.4) | In/Out | UIO 0.4 / UART0 TX |
| P2.7 | U0RX(0.5) | In/Out | UIO 0.5 / UART0 RX |
| P2.8 | SCL(0.6) | In/Out | UIO 0.6 / I2C SCL |
| P2.9 | SDA(0.7) | In/Out | UIO 0.7 / I2C SDA |
| P2.10 | U1TX(0.10) | In/Out | UIO 0.10 / UART1 TX |
| P2.11 | U1RX(0.11) | In/Out | UIO 0.11 / UART1 RX |
UART, SPI and I2C ports can be set or used to digital I/O pins. These ports are mapped to UIO 0. Digital I/O ports can also be operated as output ports of ST(Software Timer).
| Parameter | Description | Min.[V] | Max.[V] | Current[mA] |
|---|---|---|---|---|
| VIH | HIGH level input | 2.31 | - | - |
| VIL | LOW level input | - | 0.99 | - |
| VOL | LOW level output | - | 0.2 | +8 |
| VOH | HIGH level output | 3.1 | - | +8 |
※ Note: Each UIO port is 3.6V(5.5V) tolerant in input mode and the maximum driving current is 25mA in output mode.
| Pin# | Name | I/O | Description |
|---|---|---|---|
| P2.6 | U0TX(0.4) | In/Out | UIO 0.4 / UART0 TX |
| P2.7 | U0RX(0.5) | In/Out | UIO 0.5 / UART0 RX |
| P2.10 | U1TX(0.10) | In/Out | UIO 0.10 / UART1 TX |
| P2.11 | U1RX(0.11) | In/Out | UIO 0.11 / UART1 RX |
There are two UART ports and each of them has RX and TX.
| Pin# | Name | I/O | Description |
|---|---|---|---|
| P3.1 | NSS(0.0) | In/Out | UIO 0.0 / SPI NSS |
| P3.2 | SCK(0.1) | In/Out | UIO 0.1 / SPI SCK |
| P3.3 | MISO(0.2) | In/Out | UIO 0.2 / SPI MISO |
| P3.4 | MOSI(0.3) | In/Out | UIO 0.3 / SPI MOSI |
There is SPI port which has NSS, SCK, MISO and MOSI.
| Pin# | Name | I/O | Description |
|---|---|---|---|
| P3.7 | SCL(0.6) | In/Out | UIO 0.6 / I2C SCL |
| P3.8 | SDA(0.7) | In/Out | UIO 0.7 / I2C SDA |
There is I2C port which has SCL and SDA.