SCKSRC=B_0x0, SITFMOD=B_0x0, SITFEN=B_0x0, SITFACTIVE=B_0x0
ADF serial interface control register 0
| SITFEN | Serial interface enable This bit is set and cleared by software. It is used to enable/disable the serial interface. 0 (B_0x0): Serial interface disabled 1 (B_0x1): Serial interface enabled |
| SCKSRC | Serial clock source This field is set and cleared by software. It is used to select the clock source of the serial interface. others: reserved Note: This field can be write-protected (see Section 46.4.13: Register protection for details). 0 (B_0x0): Serial clock source is ADF_CCK0. 1 (B_0x1): Serial clock source is ADF_CCK1. |
| SITFMOD | Serial interface type This field is set and cleared by software. It is used to define the serial interface type. Note: This field can be write-protected (see Section 46.4.13: Register protection for details). 0 (B_0x0): LF_MASTER SPI mode 1 (B_0x1): Normal SPI mode 2 (B_0x2): Manchester mode: rising edge = logic 0, falling edge = logic 1 3 (B_0x3): Manchester mode: rising edge = logic 1, falling edge = logic 0 |
| STH | Manchester symbol threshold/SPI threshold This field is set and cleared by software. It is used for Manchester mode to define the expected symbol threshold levels (seer to Manchester mode for details on computation). In addition this field is used to define the timeout value for the clock absence detection in Normal SPI mode. STH[4:0] values lower than four are invalid. Note: This field can be write-protected (see Section 46.4.13: Register protection for details). |
| SITFACTIVE | Serial interface active flag This bit is set and cleared by hardware. It is used by the application to check if the serial interface is effectively enabled (active) or not. The protected fields of this function can only be updated when SITFACTIVE is set to 0 (see Section 46.4.13: Register protection for details). The delay between a transition on SITFEN and a transition on SITFACTIVE is two periods of AHB clock and two periods of adf_proc_ck. 0 (B_0x0): The serial interface is not active, and can be configured if needed. 1 (B_0x1): The serial interface is active and protected fields cannot be configured. |