Datasheet

Table 340.
VOLTAGE_SELECT
Register
Bits Name Description Type Reset
31:1 Reserved. - - -
0 NONAME 0x0 -> Set voltage to 3.3V (DVDD >= 2V5)
0x1 -> Set voltage to 1.8V (DVDD <= 1V8)
RW 0x0
GPIO_QSPI_SCLK Register
Table 341.
GPIO_QSPI_SCLK
Register
Bits Name Description Type Reset
31:8 Reserved. - - -
7 OD Output disable. Has priority over output enable from
peripherals
RW 0x0
6 IE Input enable RW 0x1
5:4 DRIVE Drive strength.
0x0 -> 2mA
0x1 -> 4mA
0x2 -> 8mA
0x3 -> 12mA
RW 0x1
3 PUE Pull up enable RW 0x0
2 PDE Pull down enable RW 0x1
1 SCHMITT Enable schmitt trigger RW 0x1
0 SLEWFAST Slew rate control. 1 = Fast, 0 = Slow RW 0x0
GPIO_QSPI_SD0, GPIO_QSPI_SD1, GPIO_QSPI_SD2, GPIO_QSPI_SD3 Registers
Table 342.
GPIO_QSPI_SD0,
GPIO_QSPI_SD1,
GPIO_QSPI_SD2,
GPIO_QSPI_SD3
Registers
Bits Name Description Type Reset
31:8 Reserved. - - -
7 OD Output disable. Has priority over output enable from
peripherals
RW 0x0
6 IE Input enable RW 0x1
5:4 DRIVE Drive strength.
0x0 -> 2mA
0x1 -> 4mA
0x2 -> 8mA
0x3 -> 12mA
RW 0x1
3 PUE Pull up enable RW 0x0
2 PDE Pull down enable RW 0x0
1 SCHMITT Enable schmitt trigger RW 0x1
0 SLEWFAST Slew rate control. 1 = Fast, 0 = Slow RW 0x0
GPIO_QSPI_SS Register
Table 343.
GPIO_QSPI_SS
Register
Bits Name Description Type Reset
31:8 Reserved. - - -
7 OD Output disable. Has priority over output enable from
peripherals
RW 0x0
RP2040 Datasheet
2.18. GPIO 300