Altera RapidIO II MegaCore Function - Manual (Page 148)

6–10 Chapter 6: Software Interface
Physical Layer Registers
RapidIO II MegaCore Function August 2014 Altera Corporation
User Guide
Table 6–12. Port 0 Local AckID CSR—Offset: 0x148
Field Bits Access Function Default
CLR_OUTSTANDING_
ACKIDS
[31] RW
Writing 1 to this bit causes the RapidIO II IP core to discard all
outstanding unacknowledged packets. Reading this bit always returns
the value of 0.
Software can write a 1 to this bit when attempting to recover a failed
link.
1’b0
RSRV [30] RO Reserved 1'b0
INBOUND_ACKID [29:24] RO Next expected packet ackID. 6’b0
RSRV [23:14] RO Reserved 10’b0
OUTSTANDING_
ACKID
[13:8] RO
Next expected acknowledge control-symbol ackID. When you write to
the OUTBOUND_ACKID field, the IP core sets the OUTSTANDING_ACKID
field to the same value.
6'b0
RSRV [7:6] RO Reserved 2'b0
OUTBOUND_ACKID [5:0] RW
Next transmitted packet ackID. Writing a value to this field sets the
OUTSTANDING_ACKID
field to the same value. Software can write to
this field to force retransmission of outstanding unacknowledged
packets in order to manually implement error recovery.
6'b0
Table 6–13. Port 0 Control 2 CSR—Offset: 0x154 (1) (Part 1 of 3)
Field Bits Access Function Default
SELECTED_BAUD_
RATE
[31:28] RO
The baud rate at which the port is initialized. Valid values are:
4’b0000: No baud rate selected
4’b0001: 1.25 Gbaud
4’b0010: 2.5 Gbaud
4’b0011: 3.125 Gbaud
4’b0100: 5.0 Gbaud
4’b0101: 6.25 Gbaud
All other values are reserved.
The RapidIO II IP core operates at the highest supported and enabled
baud rate.
4'b0
BD_RT_DISCOVERY_
SUPPORT
[27] R0
Indicates whether the RapidIO implementation supports automatic
baud-rate discovery. The RapidIO_II IP core does not support
automatic baud-rate discovery, so this field always has the value of 0.
1'b0
BD_RT_DISCOVERY_
ENABLE
[26] RO
Controls whether automatic baud-rate discovery is enabled in the
RapidIO implementation. The RapidIO II IP core does not support
automatic baud-rate discovery, so this field always has the value of 0.
1'b0
1.25_GB_SUPPORT [25] RO
Indicates whether the RapidIO II IP core supports port operation at
1.25 Gbaud.
1’b0: The IP core does not support 1.25 Gbaud operation.
1’b1: The IP core supports 1.25 Gbaud operation.
1'b1