Texas TMS320C645X Manual De Usuario
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5.84
Port Error and Status CSR n (SPn_ERR_STAT)
SRIO Registers
Each of the four ports is supported by a register of this type.
Figure 140. Port Error and Status CSR n (SPn_ERR_STAT)
31-27
26
25
24
23-21
20
19
18
17
16
Reserved
OUTP
OUTP
OUTP
Reserved
OUTP
OUTP
OUTP
OUTP
OUTP
UT_P
UT_FL
UT_D
UT_R
UT_R
UT_R
UT_E
UT_E
KT_D
D_EN
EGRD
ETRY
ETRIE
ETRY
RROR
RROR
ROP
C
_ENC
_ENC
D
_STP
_ENC
_STP
R-0x00
RC-
RC-
RC-
R-0x00
RC-
R-
R-
RC-
R-
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
LEGEND: R = Read only; -n = value after reset
15-11
10
9
8
7-5
4
3
2
1
0
Reserved
INPUT
INPUT
INPUT
Reserved
PORT
Reserv
PORT
PORT
PORT
_RET
_ERR
_ERR
_WRIT
ed
_ERR
_OK
_UNIN
RY_S
OR_E
OR_S
E_PN
OR
ITIALI
TP
NC
TP
D
ZED
R-0x00
R-
RC-
R-
R-0x00
RC-
R-
RC-
R-
R-
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x01
LEGEND: R = Read only; -n = value after reset
Table 114. Port Error and Status CSR n (SPn_ERR_STAT) Field Descriptions
Bit
Field
Value
Description
31-27
Reserved
Reserved
26
OUTPUT_PKT_D
Output port has discarded a packet. (switch devices only)
ROP
25
OUTPUT_FLD_E
Output port has encountered a failed condition, meaning that the failed port error threshold has
NC
been reached in the Port n Error Rate Threshold Register. Once set, it remains set until written with
a logic 1 to clear.
a logic 1 to clear.
24
OUTPUT_DEGR
Output port has encountered a degraded condition, meaning that the degraded port error threshold
D_ENC
has been reached in the Port n Error Rate Threshold Register. Once set, it remains set until written
with a logic 1 to clear.
with a logic 1 to clear.
23-21
Reserved
Reserved
20
OUTPUT_RETRY
Output port has encountered a retry condition. This bit is set when bit 18 is set. Once set, remains
_ENC
set until written with a logic 1 to clear.
19
OUTPUT_RETRI
Output port has received a packet-retry control symbol and can not make forward progress. This bit
ED
is set when bit 18 is set and is cleared when a packet-accepted or a packet-not-accepted control
symbol is received (read-only).
symbol is received (read-only).
18
OUTPUT_RETRY
Output port has received a packet-retry control symbol and is in the "output retry-stopped" state
_STP
(read-only).
17
OUTPUT_ERRO
Output port has encountered (and possibly recovered from) a transmission error. This bit is set
R_ENC
when bit 16 is set. Once set, remains set until written with a logic 1 to clear
16
OUTPUT_ERRO
Output is in the "output error-stopped" state (read-only).
R_STP
15-11
Reserved
Reserved
10
INPUT_RETRY_
Input port is in the "input retry-stopped" state (read-only).
STP
9
INPUT_ERROR_
Input port has encountered (and possibly recovered from) a transmission error. This bit is set when
ENC
bit 8 is set. Once set, remains set until written with a logic 1 to clear
8
INPUT_ERROR_
Input port is in the "input error-stopped" state (read-only).
STP
7-5
Reserved
Reserved
4
PORT_WRITE_P
Port has encountered a condition which required it to initiate a Maintenance Port-write operation
ND
This bit is only valid if the device is capable of issuing a maintenance port-write transaction. Once
set remains set until written with a logic 1 to clear.
set remains set until written with a logic 1 to clear.
3
Reserved
Reserved
2
PORT_ERROR
Input or output port has encountered an error from which hardware was unable to recover. Once
set, remains set until written with a logic 1 to clear.
set, remains set until written with a logic 1 to clear.
186
Serial RapidIO (SRIO)
SPRU976 – March 2006