Altera RapidIO II MegaCore Function User Manual
Page 162
6–24
Chapter 6: Software Interface
Physical Layer Registers
RapidIO II MegaCore Function
August 2014
Altera Corporation
User Guide
Connected port transmit
emphasis Tap(+1) status
[17:16]
RO
Tap(+1) status of the RapidIO link partner on the connected
lane:
2’b00: Tap(+1) not implemented.
2’b01: Tap(+1) at minimum emphasis setting.
2’b10: Tap(+1) at maximum emphasis setting.
2’b11: Tap(+1) at intermediate emphasis setting.
2’b00
Connected port
scrambling/descrambling
enabled
[15]
RO
Indicates scrambling/descrambling is enabled in the RapidIO
link partner on the connected lane.
1’b0: Scrambling/descrambling is not enabled.
1’b1: Scrambling/descrambling is enabled.
1’b0
RSRV
[14:0]
RO
Reserved.
15’h0
Table 6–18. LP-Serial Lane n Status 1—Far End Lane n Status—Offset: 0x214, 0x234, 0x254, 0x274 (Part 2 of 2)
Field Bits
Access
Function
Default
Table 6–19. LP-Serial Lane n Status 2—Lane n Interrupt Enable—Offset: 0x218, 0x238, 0x258, 0x278
Field Bits
Access
Function
Default
RSRV
[31:30]
RO
Reserved.
2b0
Process CMD
automatically
[29]
RO
When set, enables automatic processing of CS field values received in
the IDLE2 sequence. The RapidIO II IP core does not yet implement
this feature.
1’b0
RSRV
[28:0]
RO
Reserved.
29’h0
Table 6–20. LP-Serial Lane n Status 3—Received CS Field Commands—Offset: 0x21C, 0x23C, 0x25C, 0x27C
Field Bits
Access
Function
Default
CMD changed
[31]
RW1C
A changed cmd value in the CS field (received cmd value is different from
the previously received value).
1’b0
CMD
[30]
RO
cmd value of most recently received CS field.
1’b0
RSRV
[29]
RO
Reserved.
1’b0
Data
scrambling
enabled
[28]
RO
Value received most recently from the far end.
1’b0
Lane number
in port
[27:23]
RO
x of CS field’s Dx.y value. Should match n. This field is updated with each
received CS field.
5’h00
Active port
width
[22:20]
RO
y of CS frame’s Dx.y value. This register field is updated with each
received CS field.
3’b000
RSRV
[19:8]
RO
Reserved.
12’h000
Tap(–1)
Command
[7:6]
RO
Value of this field in the most recently received CS field.
2’b00
Tap(+1)
Command
[5:4]
RO
2’b00
Reset
emphasis
[3]
RO
1’b0
Preset
emphasis
[2]
RO
1’b0
RSRV
[1:0]
RO
Reserved.
2’b00