SNAS699B January 2017 – July 2019 LMK04610
PRODUCTION DATA.
The IOCTRL_SPI0 Register provides control of the SDIO Input/Output Driver. Return to Register Map.
BIT NO. | FIELD | TYPE | RESET | DESCRIPTION |
---|---|---|---|---|
[7] | SPI_EN_THREE_WIRE_IF | RW | 0 | SPI 3-Wire Selection. 1=3-Wire, 0=4-Wire. When configured for 4-wire operation the SDO output is connected to the STATUS1 output pad. |
[6:5] | RSRVD | - | - | Reserved. |
[4] | SPI_SDIO_OUTPUT_MUTE | RW | 0 | SDIO Output Mute. When SPI_SDIO_OUTPUT_MUTE is 1 the SDIO output driver is forced to 0 if it is enabled. |
[3] | SPI_SDIO_OUTPUT_INV | RW | 0 | SDIO Output Invert. When SPI_SDIO_OUTPUT_INV is 1 the SDIO output is inverted. |
[2] | SPI_SDIO_OUTPUT_WEAK_DRIVE | RW | 0 | SDIO Output Weak Drive Strength. When SPI_SDIO_OUTPUT_WEAK DRIVE is 1 the SDIO output is configured with a low slew rate. |
[1] | SPI_SDIO_EN_PULLUP | RW | 0 | SPI SDIO Pullup Enable. When SPI_SDIO_PULLUP_EN is 1 a pullup resistor is activated. |
[0] | SPI_SDIO_EN_PULLDOWN | RW | 0 | SPI SDIO Pulldown Enable. When SPI_SDIO_PULLDWN_EN is 1 a pulldown resistor is activated. |