PM8611-BIAP PMC [PMC-Sierra, Inc], PM8611-BIAP Datasheet - Page 204

• Manufacturer Part Number: PM8611-BIAP
• Manufacturer: PMC [PMC-Sierra, Inc]

Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-2010883, Issue 2
RX_TIMEOUT_VAL[1:0]
00
01
10
11
RX_THRESHOLD_VAL[2:0]
RX_TIMEOUT_VAL[1:0]
Variable Threshold dictates the minimum number of messages required to be in the RXFIFO
before an interrupt is generated. ‘000’ = 1 message ‘111’ = 8 messages.
These bits specify a variable delay, relative to a read from the receive message FIFO, in steps
of 125 us, before an interrupt is generated, if the Receive FIFO level is greater than 0. The
objective is to stop stale messages collecting in the RXFIFO.
RX_THRESHOLD_VAL[2:0]
000
001
010
011
100
101
110
111
Nominal
Delay in
Frames
1
2
3
4
Minimum
Delay from
Message
Reception
152 µs
277 µs
402 µs
527 µs
Messages
1
2
3
4
5
6
7
8
SBSLITE™ Telecom Standard Product Data Sheet
Maximum
Delay from
Message
Reception
222 µs
347 µs
472 µs
597 µs
Minimum
Delay from
FIFO Read
125 µs
250 µs
375 µs
500 µs
Maximum
Delay from
FIFO Read
250 µs
375 µs
500 µs
625 µs
Preliminary
203