Transmitting Vitesse Channel Bonding Sequence; Receiving Vitesse Channel Bonding Sequence - Xilinx RocketIO User Manual

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Transmitting Vitesse Channel Bonding Sequence

The RocketIO core receives this data but must have the CHAN_BOND_SEQ set with the
disp_err bit set High for the cases when TXCHARDISPVAL is set High during data
transmission.

Receiving Vitesse Channel Bonding Sequence

On the RX side, the definition of the channel bonding sequence uses the disp_err bit to
specify the flipped disparity.
60
TXBYPASS8B10B
| TXCHARISK
| | TXCHARDISPMODE
| | | TXCHARDISPVAL
| | | | TXDATA
| | | | |
0 1 0 0 10111100
0 1 0 1 10111100
0 1 0 0 10111100
0 1 0 1 10111100
10-bit literal value
| disp_err
| | char_is_k
| | | 8-bit_byte_value
| | | |
CHAN_BOND_SEQ_1_1 = 0 0 1 10111100
CHAN_BOND_SEQ_1_2 = 0 1 1 10111100
CHAN_BOND_SEQ_1_3 = 0 0 1 10111100
CHAN_BOND_SEQ_1_4 = 0 1 1 10111100
CHAN_BOND_SEQ_LEN = 4
CHAN_BOND_SEQ_2_USE = FALSE
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Chapter 3: Digital Design Considerations
K28.5+ (or K28.5-)
K28.5+ (or K28.5-)
K28.5- (or K28.5+)
K28.5- (or K28.5+)
matches K28.5+ (or K28.5-)
matches K28.5+ (or K28.5-)
matches K28.5- (or K28.5+)
matches K28.5- (or K28.5+)
UG024 (v1.5) October 16, 2002
RocketIO™ Transceiver User Guide