ZHCS747D January 2012 – September 2021 LMK01801
PRODUCTION DATA
The NO_SYNC_CLKoutX_Y bits prevent individual clock groups from becoming synchronized during a SYNC event. A reason to prevent individual clock groups from becoming synchronized is that during synchronization, the clock output is in a fixed low state or can have a glitch pulse.
By disabling SYNC on a clock group, it will continue to operate normally during a SYNC event.
Digital delay requires a SYNC operation to take effect. If NO_SYNC_CLKout12_13 is set before a SYNC event, the digital delay value will be unused.
Setting the NO_SYNC_CLKoutX_Y bit has no effect on clocks already synchronized together.
| NO_SYNC_CLKoutX_Y | Programming Address |
|---|---|
| CLKout0 to CLKout3 | R3[16] |
| CLKout4 to CLKout7 | R3[17] |
| CLKout8 to CLKout11 | R3[18] |
| CLKout12 to CLKout13 | R3[19] |
| R3[19, 18, 17, 16] | Definition |
|---|---|
| 0 | CLKoutX_Y will synchronize |
| 1 | CLKoutX_Y will not synchronize |