3.2.4.2 PIOB Bank
The PIOB bank is mainly used for the rest of GMAC0, QSPI0 and SD card interfaces over power rails VDDGMAC0, VDDQSPI0, VDDSDMMC1 and VDDIN33.
The following schematic shows the PIOB bank distribution.
The following table describes each PIOB bank function.
| PIO | Power Rail | Function | Signal Description |
|---|---|---|---|
|
PB0 |
VDDGMAC0 |
GMAC0_MDIO |
GMAC0 RGMII Management Data I/O signal |
|
PB1 |
VDDGMAC0 |
GMAC0_TXCK |
GMAC0 RGMII Transmit Clock signal |
|
PB2 |
VDDGMAC0 |
GMAC0_RX2 |
GMAC0 RGMII TX Data Line 2 |
|
PB3 |
VDDGMAC0 |
GMAC0_RXCK |
GMAC0 RGMII Receive Clock signal |
|
PB4 |
VDDGMAC0 |
GMAC0_TX2 |
GMAC0 RGMII TX Data Line 2 |
|
PB5 |
VDDGMAC0 |
GMAC0_TX3 |
GMAC0 RGMII TX Data Line 3 |
|
PB6 |
VDDGMAC0 |
GMAC0_RX3 |
GMAC0 RGMII RX Data Line 3 |
|
PB7 |
VDDGMAC0 |
MBUS1_INT |
mikroBUS1 interrupt line |
|
PB8 |
VDDQSPI0 |
QSPI0_IO3 |
QSPI0 Data Line 3 |
|
PB9 |
VDDQSPI0 |
QSPI0_IO2 |
QSPI0 Data Line 2 |
|
PB10 |
VDDQSPI0 |
QSPI0_IO1 |
QSPI0 Data Line 1 |
|
PB11 |
VDDQSPI0 |
QSPI0_IO0 |
QSPI0 Data Line 0 |
|
PB12 |
VDDQSPI0 |
QSPI0_CS |
QSPI0 Chip Select signal |
|
PB13 |
VDDQSPI0 |
QSPI0_SCK |
QSPI0 Clock signal |
|
PB14 |
VDDQSPI0 |
PB14 PIO |
MIPI DSI/LVDS PWM signal |
|
PB15 |
VDDQSPI0 |
PB15 PIO |
mikroBUS1 PWM/RPi PWM0/RGB LED green channel |
|
PB16 |
VDDQSPI0 |
PB16 PIO |
MIPI DSI/LVDS Interrupt signal |
|
PB17 |
VDDQSPI0 |
PB17 PIO |
mikroBUS2 PWM/RPi PWM1/RGB LED red channel |
|
PB18 |
VDDQSPI0 |
PB18 PIO |
MIPI DSI/LVDS Interrupt signal Enable signal |
|
PB19 |
VDDQSPI0 |
FLEXCOM10_IO1 |
MCP16502/PAC1934/EEPROM/SODIMM TWCK |
|
PB20 |
VDDQSPI0 |
FLEXCOM10_IO0 |
MCP16502/PAC1934/EEPROM/SODIMM TWD |
|
PB21 |
VDDSDMMC1 |
SDMMC1_NRST |
SDMMC1 SD Card Reset signal |
|
PB22 |
VDDSDMMC1 |
SDMMC1_CMD |
SDMMC1 SD Card Command signal |
|
PB23 |
VDDSDMMC1 |
SDMMC1_CK |
SDMMC1 SD Card Clock signal |
|
PB24 |
VDDSDMMC1 |
SDMMC1_DAT0 |
SDMMC1 SD Card Data 0 |
|
PB25 |
VDDSDMMC1 |
SDMMC1_DAT1 |
SDMMC1 SD Card Data 1 |
|
PB26 |
VDDSDMMC1 |
SDMMC1_DAT2 |
SDMMC1 SD Card Data 2 |
|
PB27 |
VDDSDMMC1 |
SDMMC1_DAT3 |
SDMMC1 SD Card Data 3 |
|
PB28 |
VDDIN33 |
SDMMC1_WP |
SDMMC1 SD Card Write-Protect |
|
PB29 |
VDDIN33 |
SDMMC1_CD |
SDMMC1 SD Card Detect signal |
|
PB30 |
VDDIN33 |
SDMMC1_1V8SEL |
SDMMC1 SD Card I/O Voltage Select |
|
PB31 |
VDDIN33 |
PIO PB31 |
PAC1934 interrupt/RPi GPCLK0 signal (not connected by default, R114 DNP)/USBA CC1 (not connected by default, R116 DNP) |