ZHCSDS8E March 2015 – August 2021 TPS65982
PRODUCTION DATA
Table 9-7 lists the I/O buffer types and descriptions. Table 9-8 lists the pin to I/O buffer mapping for cross-referencing a pin’s particular I/O structure. The following sections show a simplified version of the architecture of each I/O buffer type.
| BUFFER TYPE | DESCRIPTION |
|---|---|
| IOBUF_GPIOHSSWD | General Purpose High-Speed I/O |
| IOBUF_GPIOHSSPI | General Purpose High-Speed I/O |
| IOBUF_GPIOLS | General Purpose Low-Speed I/O |
| IOBUF_GPIOLSI2C | General Purpose Low-Speed I/O with I2C deglitch time |
| IOBUF_I2C | I2C Compliant Clock/Data Buffers |
| IOBUF_OD | Open-Drain Output |
| IOBUF_UTX | Push-Pull output buffer for UART |
| IOBUF_URX | Input buffer for UART |
| IOBUF_PORT | Input buffer between 1st/2nd stage Port Data Mux |
| I/O GROUP/PIN | BUFFER TYPE | SUPPLY CONNECTION (DEFAULT FIRST) |
|---|---|---|
| DEBUG1/2/3/4 | IOBUF_GPIOLS | LDO_3V3, VDDIO |
| DEBUG_CTL1/2 | IOBUF_GPIOLSI2C | LDO_3V3, VDDIO |
| BUSPOWERZ | IOBUF_GPIOLS | LDO_3V3, VDDIO |
| GPIO0-8 | IOBUF_GPIOLS | LDO_3V3, VDDIO |
| I2C_IRQ1/2Z | IOBUF_OD | LDO_3V3, VDDIO |
| I2C_SDA1/2/SCL/1/2 | IOBUF_I2C | LDO_3V3, VDDIO |
| LSX_P2R | IOBUF_UTX | LDO_3V3, VDDIO |
| LSX_R2P | IOBUF_URX | LDO_3V3, VDDIO |
| MRESET | IOBUF_GPIOLS | LDO_3V3, VDDIO |
| RESETZ | IOBUF_GPIOLS | LDO_3V3, VDDIO |
| UART_RX | IOBUF_URX | LDO_3V3, VDDIO |
| UART_TX | IOBUF_UTX | LDO_3V3, VDDIO |
| PORT_INT | IOBUF_PORT | LDO_3V3 |
| SPI_PICO/POCI/CLK/CSZ | IOBUF_GPIOHSSPI | LDO_3V3 |
| SWD_CLK/DATA | IOBUF_GPIOHSSWD | LDO_3V3 |