SPRUIM2H May 2020 – October 2023 AM2431 , AM2432 , AM2434 , AM6411 , AM6412 , AM6421 , AM6422 , AM6441 , AM6442
The pad configuration registers are used to configure most of the device pads. Each pad configuration register (PADMMR_PADCONFIG0 to PADMMR_PADCONFIG181) is assotiated only with one pad and has bits as described in Table 5-4.
Bit | Field(1) | Type | Description |
---|---|---|---|
31 | LOCK | R/W | Pad configuration register lock bit. |
30-22 | RESERVED | R | Reserved |
21 | TX_DIS | R/W | Disables the driver for a pad |
20-19 | RESERVED | R | Reserved |
18 | RXACTIVE | R/W | Input enable for a pad |
17-15 | RESERVED | R | Reserved |
14 | ST_EN | R/W | Receiver Schmitt Trigger enable |
13-11 | DEBOUNCE_SEL | R/W | Selects the debouce period for a pad. For more information, see I/O Debounce Registers. 0h - Debounce period of 0 1h - Debounce period as specified via the CTRLMMR_MCU_DBOUNCE_CFG1[5-0] DB_CFG field 2h - Debounce period as specified via the CTRLMMR_MCU_DBOUNCE_CFG2[5-0] DB_CFG field 3h - Debounce period as specified via the CTRLMMR_MCU_DBOUNCE_CFG3[5-0] DB_CFG field 4h - Debounce period as specified via the CTRLMMR_MCU_DBOUNCE_CFG4[5-0] DB_CFG field 5h - Debounce period as specified via the CTRLMMR_MCU_DBOUNCE_CFG5[5-0] DB_CFG field 6h - Debounce period as specified via the CTRLMMR_MCU_DBOUNCE_CFG6[5-0] DB_CFG field 7h - Reserved |
10-4 | RESERVED | R | Reserved |
3-0 | MUXMODE | R/W | Selects the desired multiplexing mode for a pad 0h - Mux Mode 0 1h - Mux Mode 1 2h - Mux Mode 2 3h - Mux Mode 3 4h - Mux Mode 4 5h - Mux Mode 5 6h - Mux Mode 6 7h - Mux Mode 7 8h - Mux Mode 8 9h - Mux Mode 9 Ah - Mux Mode 10 Bh - Mux Mode 11 Ch - Mux Mode 12 Dh - Mux Mode 13 Eh - Mux Mode 14 Fh - Mux Mode 15 |
Many of the device pads support pad multiplexing. This means that their function can be independently chosen from two or more options. The selection of functions available on each pad is enumerated in table “Pin Multiplexing” of the device-specific Datasheet. The desired function is selected via the MUXMODE field of the associated pad configuration register.
The PADMMR_PADCONFIG0 to PADMMR_PADCONFIG181 registers control the signal multiplexing of modules in the device MAIN domain.