User Guide

Table Of Contents
www.ti.com
5.40 INTDST n Interrupt Rate Control Registers (INTDST n_RATE_CNTL)
SRIO Registers
There are eight of these registers.
Figure 96. INTDST n Interrupt Rate Control Registers (INTDST n_RATE_CNTL)
31-16
COUNT_DOWN_VALUE
RW-0x00
LEGEND: R = Read only; - n = value after reset
15-0
COUNT_DOWN_VALUE
RW-0x00
LEGEND: R = Read only; - n = value after reset
Table 70. INTDST n Interrupt Rate Control Registers (INTDST n_RATE_CNTL) Field Descriptions
Bit Field Value Description
31-0 COUNT_DOWN_ The rate at which an interrupt can be generated is controllable for each physical interrupt
VALUE destination. Rate control is implemented with a programmable down-counter. The counter reloads
and immediately starts down-counting each time the CPU writes these registers. Once the rate
control counter register is written, and the counter value reaches zero (note the CPU may write zero
immediately for a zero count), the interrupt pulse generation logic is allowed to fire a single pulse if
any bits in the corresponding ICSR register bits are set (or become set after the zero count is
reached).
SPRU976 March 2006 Serial RapidIO (SRIO) 141
Submit Documentation Feedback