For pins not mentioned in "4.5 Connections for Unused Pins" on the data sheet, how is it recommended to connect each of the pins when unused?
Most of pins with a Pad Configuration Register can be left unconnected with their multiplexing mode set to GPIO input and internal pulldown resistor enabled.
For pins without a Pad Configuration Register, which are MUXMODE is blank and TYPE have Input or Analog in "Table 4-1. Pin Attributes" on the data sheet, is an external pull resistor required to hold a valid logic level?
| BALL NUMBER | BALL NAME |
| G28 | CSI0_RXN0 |
| H27 | CSI0_RXN1 |
| F26 | CSI0_RXN2 |
| H25 | CSI0_RXN3 |
| G24 | CSI0_RXN4 |
| F28 | CSI0_RXP0 |
| G27 | CSI0_RXP1 |
| G26 | CSI0_RXP2 |
| G25 | CSI0_RXP3 |
| F24 | CSI0_RXP4 |
| A10 | DDR_AC0 |
| D9 | DDR_AC1 |
| C9 | DDR_AC2 |
| E9 | DDR_AC3 |
| A9 | DDR_AC4 |
| E8 | DDR_AC5 |
| F8 | DDR_AC6 |
| C7 | DDR_AC7 |
| C8 | DDR_AC8 |
| D7 | DDR_AC9 |
| E7 | DDR_AC10 |
| A6 | DDR_AC11 |
| F7 | DDR_AC12 |
| D6 | DDR_AC13 |
| C6 | DDR_AC14 |
| F6 | DDR_AC15 |
| E6 | DDR_AC16 |
| E5 | DDR_AC17 |
| D8 | DDR_AC18 |
| D10 | DDR_AC19 |
| E10 | DDR_AC20 |
| C10 | DDR_AC21 |
| F11 | DDR_AC22 |
| B10 | DDR_AC23 |
| D11 | DDR_AC24 |
| B11 | DDR_AC25 |
| C11 | DDR_AC26 |
| E11 | DDR_AC27 |
| E12 | DDR_AC28 |
| D12 | DDR_AC29 |
| D5 | DDR_ALERTn |
| B8 | DDR_CK0N |
| A8 | DDR_CK0P |
| B7 | DDR_CK1N |
| A7 | DDR_CK1P |
| E1 | DDR_DM0 |
| C5 | DDR_DM1 |
| D14 | DDR_DM2 |
| B17 | DDR_DM3 |
| A3 | DDR_DQ0 |
| B2 | DDR_DQ1 |
| C2 | DDR_DQ2 |
| D2 | DDR_DQ3 |
| E2 | DDR_DQ4 |
| G1 | DDR_DQ5 |
| F2 | DDR_DQ6 |
| F1 | DDR_DQ7 |
| E3 | DDR_DQ8 |
| C3 | DDR_DQ9 |
| D3 | DDR_DQ10 |
| B3 | DDR_DQ11 |
| D4 | DDR_DQ12 |
| C4 | DDR_DQ13 |
| B4 | DDR_DQ14 |
| B5 | DDR_DQ15 |
| E13 | DDR_DQ16 |
| C14 | DDR_DQ17 |
| B14 | DDR_DQ18 |
| A14 | DDR_DQ19 |
| E14 | DDR_DQ20 |
| B13 | DDR_DQ21 |
| C13 | DDR_DQ22 |
| D13 | DDR_DQ23 |
| D15 | DDR_DQ24 |
| C15 | DDR_DQ25 |
| E16 | DDR_DQ26 |
| E15 | DDR_DQ27 |
| D16 | DDR_DQ28 |
| B16 | DDR_DQ29 |
| C16 | DDR_DQ30 |
| A17 | DDR_DQ31 |
| C1 | DDR_DQS0N |
| D1 | DDR_DQS0P |
| A4 | DDR_DQS1N |
| A5 | DDR_DQS1P |
| A12 | DDR_DQS2N |
| A13 | DDR_DQS2P |
| A16 | DDR_DQS3N |
| A15 | DDR_DQS3P |
| B19 | DDR_ECC_D0 |
| B18 | DDR_ECC_D1 |
| C18 | DDR_ECC_D2 |
| D18 | DDR_ECC_D3 |
| E18 | DDR_ECC_D4 |
| E17 | DDR_ECC_D5 |
| D17 | DDR_ECC_D6 |
| C17 | DDR_ECC_DM |
| A18 | DDR_ECC_DQSN |
| A19 | DDR_ECC_DQSP |
| A11 | DDR_RESETn |
| F12 | DDR_VREF0 |
| F15 | DDR_VREF_ZQ |
| V5 | MCU_BYP_POR |
| L25 | OLDI0_CLKN |
| K25 | OLDI0_CLKP |
| J28 | OLDI0_A0N |
| K28 | OLDI0_A0P |
| L27 | OLDI0_A1N |
| K27 | OLDI0_A1P |
| K24 | OLDI0_A2N |
| J24 | OLDI0_A2P |
| J26 | OLDI0_A3N |
| K26 | OLDI0_A3P |
| E22 | OSC1_XO |
| AF9 | REFCLK0N |
| AF10 | REFCLK0P |
| AE8 | REFCLK1N |
| AE9 | REFCLK1P |
| AE2 | USB0_DM |
| AF1 | USB0_DP |
| AF7 | USB0_ID |
| AE7 | USB0_VBUS |
| AD2 | USB1_DM |
| AE1 | USB1_DP |
| AF5 | USB1_ID |
| AF6 | USB1_VBUS |
| AC4 | WKUP_LFOSC0_XO |
| AE6 | WKUP_OSC0_XO |
Best regards,
Daisuke
