JAJSCX6B January 2017 – July 2019 LMK04610
PRODUCTION DATA.
Any channel can be programmed to generate SYSREF clock. There are different SYSREF modes supported by LMK0461x. SYSREF can be either fixed number of pulses or a continuous clock. There is a 5-bit register provided to program the number of pulses to be generated at each SYSREF request. Also, there is a possibility to control the number of pulses with the SYNC pin. Each SYSREF clock can be individually delayed. There are different options to introduce the delay in the SYSREF path. See Digital Delay and Analog Delay for programming the delays. Following bits needs to be programed to use the SYSREF feature:
BIT NAME | FUNCTION |
---|---|
EN_SYNC_PIN_FUNC | Enable SYNC_SYSREF features at SYNC pin |
GLOBAL_CONT_SYSREF | Enable continuous SYSREF |
GLOBAL_SYSREF | Trigger SYSREF, Self-clearing |
OUTCH_SYSREF_PLSCNT | Set number of desired SYSREF pulses from 1 to 32. 0 Enables continuous SYSREF |
SYSREF_EN_CH10
SYSREF_EN_CH9 SYSREF_EN_CH7_8 SYSREF_EN_CH6 SYSREF_EN_CH5 SYSREF_EN_CH3_4 SYSREF_EN_CH2 SYSREF_EN_CH1 |
Enable SYSREF feature at channel CHx |