S/UNI-IMA-4 Telecom Standard Product Data Sheet
Released
Register 0x20C: RIPP Timer Tick Configuration Register
Bit
15:0
Type
R/W
Function
Timer_tick_interval
Default
0x3473
Timer_tick_interval
This value controls the interval between timer tick events. The timer ticks are internally
generated by counting sysclk pulses. The count of sysclk pulses between timer ticks is a 26
bit integer, the most significant 16 bits of which are specified here, and the lower 10-bits are
set to ‘0’s internally. To give an example, a Timer_tick_interval value of 0x3473 represents
a value of 0XD1CC00 (13,749,248 decimal) sysclk pulses; this translates to about 250
milliseconds in real time assuming a 55 MHz sysclk.
Also, note that programming a value of 0 in this register is equivalent to programming a
value of 1 (there is always a non-zero interval).
Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2020889, Issue 2
182
PMC [ PMC-SIERRA, INC ]
