Altera RapidIO II MegaCore Function - Manual (Page 151)

Chapter 6: Software Interface 6–13
Physical Layer Registers
August 2014 Altera Corporation RapidIO II MegaCore Function
User Guide
IDLE_SEQUENCE [29] RO
Indicates which Idle control symbol is active.
1’b0: IP core uses IDLE1 control symbols.
1’b1: IP core uses IDLE2 control symbols.
The RapidIO II IP core currently supports only the IDLE2 sequence, so
this bit always has the value of 1.
1'b1
RSRV [28] RO Reserved 1'b0
FLOW_CTRL_MODE [27] RO
Indicates which flow control mode is active.
1’b0: Receiver-controlled flow control is active.
1’b1: Transmitter-controlled flow control is active.
1'b0
OUT_PKT_DROPD [26] RW1C
Output port has discarded a packet because the failed error threshold in
the Port 0 Error Rate Threshold register has been reached. After
it is set, this bit is cleared only when software writes the value of 1 to it.
1'b0
OUT_FAIL_ENC [25] RW1C
Output port has encountered a failed condition: the failed error
threshold in the Port 0 Error Rate Threshold register (
Table 6–82
on page 6–53 ) has been reached. After it is set, this bit is cleared only
when software writes the value of 1 to it.
1'b0
OUT_DGRD_ENC [24] RW1C
Output port has encountered a degraded condition: the degraded error
threshold in the Port 0 Error Rate Threshold register (
Table 6–82
on page 6–53 ) has been reached. After it is set, this bit is cleared only
when software writes the value of 1 to it.
1'b0
RSRV [23:21] RO Reserved 3'b0
OUT_RTY_ENC [20] RW1C
Output port has encountered a retry condition. In all cases, this
condition is caused by the port receiving a packet-retry control
symbol. This bit is set if the OUT_RTY_STOP bit is set.
1'b0
OUT_RETRIED [19] RO
Output port has received a packet-retry control symbol and cannot
make forward progress. This bit is cleared when a packet-accepted
or packet-not-accepted control symbol is received.
1'b0
OUT_RTY_STOP [18] RO
Indicates that the output port is in the Output Retry Stopped state.
Output port has been stopped due to a retry and is trying to recover.
When a port receives a packet_retry control symbol, it enters the
Output Retry Stopped state. In this state, the port transmits a
restart-from-retry
control symbol to its link partner. The link
partner exits the Input Retry Stopped state and normal operation
resumes. The port exits the Output Retry Stopped state.
1'b0
OUT_ERR_ENC [17] RW1C
Output port has encountered a transmission error and has possibly
recovered from it. This bit is set when the OUT_ERR_STOP bit is set.
After it is set, this bit is cleared only when software writes the value of 1
to it.
1'b0
Table 6–14. Port 0 Error and Status CSR—Offset: 0x158 (1) (Part 2 of 5)
Field Bits Access Function Default