Altera Transceiver PHY IP Core Bedienungsanleitung Seite 86

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Signal Name Direction Description
reconfig_from_xcvr
[(<n>46-1):0]
Output Reconfiguration signals to the Reconfiguration
Design Example. <n> grows linearly with the
number of reconfiguration interfaces.
rc_busy Input When asserted, indicates that reconfiguration is in
progress.
lt_start_rc Output When asserted, starts the TX PMA equalization
reconfiguration.
main_rc[5:0] Output The main TX equalization tap value which is the
same as V
OD
. The following example mappings to
the V
OD
settings are defined:
6'b111111: FIR_MAIN_12P6MA
6'b111110: FIR_MAIN_12P4MA
6'b000001: FIR_MAIN_P2MA
6'b000000: FIR_MAIN_DISABLED
post_rc[4:0] Output The post-cursor TX equalization tap value. This
signal translates to the first post-tap settings. The
following example mappings are defined:
5'b11111: FIR_1PT_6P2MA
5'b11110: FIR_1PT_6P0MA
5'b00001: FIR_1PT_P2MA
5'b00000: FIR_1PT_DISABLED
pre_rc[3:0] Output The pre-cursor TX equalization tap value. This
signal translates to pre-tap settings. The following
example mappings are defined:
4'b1111: FIR_PRE_3P0MA
4'b1110: FIR_PRE_P28MA
4'b0001: FIR_PRE_P2MA
4'b0000: FIR_PRE_DISABLED
tap_to_upd[2:0] Output Specifies the TX equalization tap to update to
optimize signal quality. The following encodings are
defined:
3'b100: main tap
3'b010: post-tap
3'b001: pre-tap
seq_start_rc Output When asserted, starts PCS reconfiguration.
4-30
Dynamic Reconfiguration Interface Signals
UG-01080
2015.01.19
Altera Corporation
Backplane Ethernet 10GBASE-KR PHY IP Core with Early Access FEC Option
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