IDT CPS-1848, User Manual

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6. Event Management > Event Notification
CPS-1848 User Manual 139 June 2, 2014
Formal Status This document is confidential and is subject to an NDA.
Integrated Device Technology
6.3.2 Physical Layer Events Notification
According the RapidIO specification, physical layer events trigger notification only if the leaky bucket degraded or failure
threshold values are exceeded. Notification can occur in the form of a port-write or an interrupt.
The CPS-1848 exceeds the RapidIO specification required notifications to allow individual physical layer events to trigger
interrupt or Standard port-write notification. Additionally, the Error Log allows IDT port-write notification for selected events, as
described in
Error Log Event Notification Programming Model .
To enable Standard port-write notification for any physical layer event, the Port {0..17} Operations Register . PORT_PW_EN bit
must be set (see Table 53 ).
To enable interrupt notification for any physical layer event, the Port {0..17} Operations Register .PORT_INT_EN bit must be set
(see Table 53 ).
To enable Error Log reporting of port events, the Port {0..17} Operations Register .PORT_LOG_EN bit must be set (see
Table 53 ). For more information on how the Error Log can assert interrupts and send IDT port-writes, see Error Log Event
Notification Programming Model .
Maintenance transaction field
error Logical/Transport Layer Error
Report Enable
Register
.IMP_SPEC_ERR_EN
= 1
1
and
Device Control 1
Register
.LT_PW_EN = 1
Logical/Transport Layer Error
Report Enable
Register
.IMP_SPEC_ERR_EN
= 1 and
Device Control 1
Register
.LT_INIT_EN = 1
Logical/Transport Layer Error
Report Enable
Register
.IMP_SPEC_ERR_EN
= 1
Maintenance packet received
was too short or too long Logical/Transport Layer Error
Report Enable
Register
.IMP_SPEC_ERR_EN
= 1
1
and
Device Control 1
Register
.LT_PW_EN = 1
Logical/Transport Layer Error
Report Enable
Register
.IMP_SPEC_ERR_EN
= 1 and
Device Control 1
Register
.LT_INIT_EN = 1
Logical/Transport Layer Error
Report Enable
Register
.IMP_SPEC_ERR_EN
= 1
1. For more information on the location of this enable bit, see the table below Logical/Transport Layer Control Capture CSR .
A single packet or control symbol can cause multiple physical layer events to be detected. The leaky
bucket counter is incremented by 1 for each erroneous control symbol and packet, regardless of the
number of physical layer events detected in individual control symbols or packets.
Table 52: Logical/Transport Layer Event Notification Control (Continued)
Event Standard Port-Write Reporting Interrupt Reporting Error Log Reporting