80KSBR200 Datasheet, PDF (75/172 Pages) Integrated Device Technology – sRIO SERIAL BUFFER FLOW-CONTROL DEVICE

IDT 80KSBR200
Notes
Advanced Datasheet*
Port 0 Error and Status CSR
This register is accessed when a local processor or an external device wishes to examine the port error and status
information.
Name: P0_ERR_STAT_CSR
Address: 0x000158
Bit
0
1
2
3
4
7:5
8
9
10
15:11
16
17
18
19
20
23:21
Field Name
Reset
Value
Comment
PORT_UNINIT
1b1
PORT_OK
1b0
PORT_ERR
1b0
-
0
PORT_WR_PEND 1b0
-
0
Port Uninitialized:
Input and output ports are not initialized. This bit and bit 30 are mutu-
ally exclusive (read-only).
Port OK:
The input and output ports are initialized and the port is exchanging
error-free control symbols with the attached device (read-only).
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.
Reserved.
Port-write Pending:
Port has encountered a condition which required it to initiate a Main-
tenance Port-write operation. 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.
Reserved.
IN_ERR_STOP
1b0
Input Error-stopped:
Input port is stopped due to transmission error (read-only).
IN_ERR_ENC
1b0
IN_RTRY_STOP 1b0
Input Error-encountered:
Input port has encountered (and possibly recovered from) a trans-
mission error. This bit is set when bit 23 is set. Once set, remains set
until written with a logic 1 to clear.
Input Retry-stopped:
Input port is stopped due to a retry (read-only).
-
0
OUT_ERR_STOP 1b0
Reserved.
Output Error-stopped:
Output port is stopped due to a transmission error (read-only).
OUT_ERR_ENC
1b0
OUT_RTRY_STOP 1b0
OUT_RETRY
1b0
OUT_RTRY_ENC 1b0
-
0
Output Error-encountered:
Output port has encountered (and possibly recovered from) a trans-
mission error. This bit is set when bit 15 is set. Once set, remains set
until written with a logic 1 to clear.
Output Retry-stopped:
Output port is stopped due to a retry (read-only).
Output Retried:
Output port has received a packet-retry control symbol and can not
make forward progress. This bit is set when bit 13 is set and cleared
when a packet-accepted or packet-not-accepted control symbol is
received (read-only).
Output Retry-encountered:
Output port has encountered a retry condition. This bit is set when bit
13 is set. Once set, remains set until written with a logic 1 to clear.
Reserved.
Table 33 Port 0 Error and Status CSR
75 of 172
March 19, 2007
„2005 Integrated Device Technology, Inc. All rights reserved. Advanced Datasheet for informational purposes only. Product specifications subject to change without notice.NOT AN OFFER FOR SALE The information presented herein is subject to a
Non-Disclosure Agreement (NDA) and is for planning purposes only. Nothing contained in this presentation, whether verbal or written, is intended as, or shall have the effect of, a sale or an offer for sale that creates a contractual power of acceptance.