Between the CAUI-10 and CAUI-4 modes, the PCS multiplexer blocks
combine and distribute the PMD lanes from the SerDes to the internal PCS lane logic.
The following figure illustrates the multiplexing and demultiplexing function
contained in the RX and TX PCS multiplexer blocks for the SerDes interfaces which
are 80 bits wide. The lower 32 bits are used in CAUI-10 mode.
Figure 1. PCS Multiplexing in CAUI-10 and CAUI-4 Modes
UltraScale Architecture Integrated Block for 100G Ethernet (CMAC)
Page-1
Custom 2
Custom 2.3
Standard Arrow.47
Standard Arrow.5
Standard Arrow.6
Standard Arrow.7
Standard Arrow.8
Standard Arrow.9
Standard Arrow.10
Sheet.11
Sheet.12
Sheet.13
PCS Lane 0 (16b)
Sheet.14
PCS Lane 1 (16b)
Sheet.15
PCS Lane 2 (16b)
Sheet.16
PCS Lane 3 (16b)
Sheet.17
PCS Lane 4 (16b)
Sheet.18
CAUI mode 2:1 Multiplexing
Multiplexing
Sheet.19
CAUI-4 mode 5:1 Multiplexing
Multiplexing
Sheet.20
CAUI-10 TX PMD Lane 0 (32b)
TX PMD Lane 0( 32b)
Sheet.21
CAUI-4 TX PMD Lane 0 (80b)
TX PMD Lane 0( 80b)
Custom 2.22
Custom 2.23
Standard Arrow.24
Standard Arrow.25
Standard Arrow.26
Standard Arrow.27
Standard Arrow.28
Standard Arrow.29
Standard Arrow.30
Sheet.31
Sheet.32
Sheet.33
PCS Lane 0 (16b)
Sheet.34
PCS Lane 1 (16b)
Sheet.35
PCS Lane 2 (16b)
Sheet.36
PCS Lane 3 (16b)
Sheet.37
PCS Lane 4 (16b)
Sheet.38
CAUI mode 1:2 De-multiplexing
De -multiplexing
Sheet.39
CAUI-4 mode 1:5 De-multiplexing
De -multiplexing
Sheet.40
CAUI-10 RX PMD Lane 0 (32b)
RX PMD Lane 0( 32b)
Sheet.41
CAUI-4 RX PMD Lane 0 (80b)
RX PMD Lane 0( 80b)
Sheet.42
TX PCS Lane Muxing
Sheet.43
RX PCS Lane De-multiplexing
De -multiplexing
Sheet.44
X17167-022117
The preceding pattern is repeated for the other three 80-bit SerDes
interfaces.
Each 80-bit SerDes interface is actually composed of a 16-bit group
and a 64-bit group. The mapping of these two groups onto the 80-bit interface is
illustrated in the following figures for RX and TX respectively.
Figure 2. RX GTY MappingNote: The connectivity between the 100G Ethernet
IP RX SerDes data interface to the GTY transceiver RX datapath for CAUI-10 and
CAUI-4/100GAUI-4 operation is taken care of in the 100G Ethernet IP core.
Figure 3. TX GTY MappingNote: The connectivity between the 100G Ethernet
IP TX SerDes data interface to the GTY transceiver TX datapath for CAUI-10 and
CAUI-4/100GAUI-4 operation is taken care of in the 100G Ethernet IP core.
Figure 4. 100GAUI-2 TX GTM Mapping
Page-1
Sheet.1
Sheet.2
tx_serdes_data_3[63:0]
Sheet.3
Sheet.4
tx_serdes_alt_data_3[15:0]
Sheet.5
Sheet.6
internal_tx_serdes_data_3[79:0]
[ 79 : 0 ]
Sheet.7
CH1_TX_Data[159:0]
Sheet.9
CH0_TX_Data[159:0]
Sheet.10
To GTM
Sheet.11
From CMAC
Sheet.12
Sheet.13
Concat
Sheet.14
0
Sheet.15
1
Sheet.16
Lane_3
Sheet.17
Sheet.18
tx_serdes_data_2[63:0]
Sheet.19
Sheet.20
tx_serdes_alt_data_2[15:0]
Sheet.21
Sheet.22
internal_tx_serdes_data_2[79:0]
[ 79 : 0 ]
Sheet.23
Concat
Sheet.24
0
Sheet.25
1
Sheet.26
Lane_2
Sheet.27
Sheet.28
tx_serdes_data_1[63:0]
Sheet.29
Sheet.30
tx_serdes_alt_data_1[15:0]
Sheet.31
Sheet.32
internal_tx_serdes_data_1[79:0]
[ 79 : 0 ]
Sheet.33
Concat
Sheet.34
0
Sheet.35
1
Sheet.36
Lane_1
Sheet.37
Sheet.38
tx_serdes_data_0[63:0]
Sheet.39
Sheet.40
tx_serdes_alt_data_0[15:0]
Sheet.41
Sheet.42
internal_tx_serdes_data_0[79:0]
[ 79 : 0 ]
Sheet.43
Concat
Sheet.44
0
Sheet.45
1
Sheet.46
Lane_0
Sheet.47
Sheet.48
Sheet.49
Sheet.50
Sheet.51
Sheet.52
{data_3[79:0],data_2[79:0]}
[ 79 : 0 ] ,data_2[ 79 : 0 ] }
Sheet.53
{data_1[79:0],data_0[79:0]}
[ 79 : 0 ] ,data_0[ 79 : 0 ] }
Sheet.54
320b @332.03125 MHz
Sheet.55
106.250 Gb/s
Sheet.56
320b @322.2656 MHz
Sheet.57
103.125 Gb/s
Sheet.58
X21781-102318
Figure 5. 100GAUI-2 RX GTM Mapping
Page-1
Sheet.1
Sheet.2
rx_serdes_data_3[63:0]
Sheet.3
Sheet.4
rx_serdes_alt_data_3[15:0]
Sheet.5
Sheet.6
internal_rx_serdes_data_3[79:0]
[ 79 : 0 ]
Sheet.7
CH1_RX_Data[159:0]
Sheet.9
CH0_RX_Data[159:0]
Sheet.10
From GTM
Sheet.11
To CMAC
Sheet.12
Sheet.13
Concat
Sheet.14
0
Sheet.15
1
Sheet.16
Lane_3
Sheet.17
Sheet.18
rx_serdes_data_2[63:0]
Sheet.19
Sheet.20
rx_serdes_alt_data_2[15:0]
Sheet.21
Sheet.22
internal_rx_serdes_data_2[79:0]
[ 79 : 0 ]
Sheet.23
Concat
Sheet.24
0
Sheet.25
1
Sheet.26
Lane_2
Sheet.27
Sheet.28
rx_serdes_data_1[63:0]
Sheet.29
Sheet.30
rx_serdes_alt_data_1[15:0]
Sheet.31
Sheet.32
internal_rx_serdes_data_1[79:0]
[ 79 : 0 ]
Sheet.33
Concat
Sheet.34
0
Sheet.35
1
Sheet.36
Lane_1
Sheet.37
Sheet.38
rx_serdes_data_0[63:0]
Sheet.39
Sheet.40
rx_serdes_alt_data_0[15:0]
Sheet.41
Sheet.42
internal_rx_serdes_data_0[79:0]
[ 79 : 0 ]
Sheet.43
Concat
Sheet.44
0
Sheet.45
1
Sheet.46
Lane_0
Sheet.47
Sheet.48
Sheet.49
Sheet.50
Sheet.51
Sheet.52
{data_3[79:0],data_2[79:0]}
[ 79 : 0 ] ,data_2[ 79 : 0 ] }
Sheet.53
{data_1[79:0],data_0[79:0]}
[ 79 : 0 ] ,data_0[ 79 : 0 ] }
Sheet.54
320b @332.03125 MHz
Sheet.55
106.250 Gb/s
Sheet.56
320b @322.2656 MHz
Sheet.57
103.125 Gb/s
Sheet.58
X21782-102318
Figure 6. CAUI-4 TX GTM Mapping
Page-1
Sheet.1
Sheet.2
Sheet.3
Sheet.4
Sheet.5
[79:78]
Sheet.6
Sheet.7
[69:68]
Sheet.8
Sheet.9
[59:58]
Sheet.10
Sheet.11
[49:48]
Sheet.12
Sheet.13
[39:38]
Sheet.14
Sheet.15
[29:28]
Sheet.16
Sheet.17
[19:18]
Sheet.18
Sheet.19
[9:8]
Sheet.20
Sheet.21
[7:0]
Sheet.22
Sheet.23
[17:10]
Sheet.24
Sheet.25
[27:20]
Sheet.26
Sheet.27
[37:30]
Sheet.28
Sheet.29
[47:40]
Sheet.30
Sheet.31
[57:50]
Sheet.32
Sheet.33
[67:60]
Sheet.34
Sheet.35
[77:70]
Sheet.36
Sheet.37
Sheet.38
Sheet.39
tx_serdes_data_3[63:0]
Sheet.40
Sheet.41
Sheet.42
[7:0]
Sheet.43
[15:8]
Sheet.44
[23:16]
Sheet.45
[31:24]
Sheet.46
[39:32]
Sheet.47
[47:40]
Sheet.48
[55:48]
Sheet.49
[63:56]
Sheet.50
[1:0]
Sheet.51
[3:2]
Sheet.52
[5:4]
Sheet.53
[7:6]
Sheet.54
[9:8]
Sheet.55
[11:10]
Sheet.56
[13:12]
Sheet.57
[15:14]
Sheet.58
Sheet.59
Sheet.60
Sheet.61
tx_serdes_alt_data_3[15:0]
Sheet.62
Sheet.63
int_tx_serdes_data_3[79:0]
Sheet.64
Sheet.65
int_tx_serdes_data_2[79:0]
Sheet.66
Sheet.67
int_tx_serdes_data_1[79:0]
Sheet.68
Sheet.69
int_tx_serdes_data_0[79:0]
Sheet.70
Lane_3
Sheet.71
Lane_2
Sheet.72
Lane_1
Sheet.73
Lane_0
Sheet.74
DUAL1_CH1_TX_Data[63:0]
Sheet.76
tx_serdes_data_3[63:0]
Sheet.77
To GTM
Sheet.78
From CMAC
Sheet.79
256b @402.8320 MHz
Sheet.80
103.125 Gb/s
Sheet.81
DUAL1_CH0_TX_Data[63:0]
Sheet.82
tx_serdes_data_2[63:0]
Sheet.83
DUAL0_CH1_TX_Data[63:0]
Sheet.84
tx_serdes_data_1[63:0]
Sheet.85
DUAL0_CH0_TX_Data[63:0]
Sheet.86
tx_serdes_data_0[63:0]
Sheet.183
320b @322.2656 MHz
Sheet.184
103.125 Gb/s
Sheet.185
TX Gearbox
Gearbox
Sheet.186
Sheet.187
TX Gearbox
Gearbox
Sheet.188
Sheet.189
TX Gearbox
Gearbox
Sheet.190
Sheet.191
TX Gearbox
Gearbox
Sheet.192
Sheet.87
X21783-031419
Figure 7. CAUI-4 RX GTM Mapping
Page-1
Sheet.1
Sheet.2
[15:14]
Sheet.3
Sheet.4
[63:56]
Sheet.5
Sheet.6
[13:12]
Sheet.7
Sheet.8
[55:48]
Sheet.9
Sheet.10
[11:10]
Sheet.11
Sheet.12
[47:40]
Sheet.13
Sheet.14
[9:8]
Sheet.15
Sheet.16
[39:32]
Sheet.17
Sheet.18
[7:0]
Sheet.19
Sheet.20
[1:0]
Sheet.21
Sheet.22
[15:8]
Sheet.23
Sheet.24
[3:2]
Sheet.25
Sheet.26
[23:16]
Sheet.27
Sheet.28
[5:4]
Sheet.29
Sheet.30
[31:24]
Sheet.31
Sheet.32
[7:6]
Sheet.33
Sheet.34
rx_serdes_data_3[63:0]
Sheet.35
Sheet.36
Sheet.37
Sheet.38
Sheet.39
Sheet.40
[79:78]
Sheet.41
[77:70]
Sheet.42
[69:68]
Sheet.43
[67:60]
Sheet.44
[59:58]
Sheet.45
[57:50]
Sheet.46
[49:48]
Sheet.47
[47:40]
Sheet.48
[7:0]
Sheet.49
[9:8]
Sheet.50
[17:10]
Sheet.51
[19:18]
Sheet.52
[27:20]
Sheet.53
[29:28]
Sheet.54
[37:30]
Sheet.55
[39:38]
Sheet.56
Sheet.57
rx_serdes_alt_data_3[15:0]
Sheet.58
Sheet.59
Sheet.60
Sheet.61
Sheet.62
Sheet.63
Sheet.64
Sheet.65
Sheet.66
Sheet.67
Sheet.68
Sheet.69
Sheet.70
Sheet.71
int_rx_serdes_data_3[79:0]
Sheet.72
Sheet.73
int_rx_serdes_data_2[79:0]
Sheet.74
Sheet.75
int_rx_serdes_data_1[79:0]
Sheet.76
Sheet.77
int_rx_serdes_data_0[79:0]
Sheet.78
Lane_3
Sheet.79
Lane_2
Sheet.80
Lane_1
Sheet.81
Lane_0
Sheet.83
From GTM
Sheet.84
Sheet.85
Sheet.87
256b @402.8320 MHz
Sheet.88
103.125 Gb/s
Sheet.89
DUAL1_CH1_RX_Data[63:0]
Sheet.90
rx_serdes_data_3[63:0]
Sheet.91
DUAL1_CH0_RX_Data[63:0]
Sheet.92
rx_serdes_data_2[63:0]
Sheet.93
DUAL0_CH1_RX_Data[63:0]
Sheet.94
rx_serdes_data_1[63:0]
Sheet.95
DUAL0_CH0_RX_Data[63:0]
Sheet.96
rx_serdes_data_0[63:0]
Sheet.203
To CMAC
Sheet.204
320b @322.2656 MHz
Sheet.205
103.125 Gb/s
Sheet.206
RX Gearbox
Gearbox
Sheet.207
Sheet.208
RX Gearbox
Gearbox
Sheet.209
Sheet.210
RX Gearbox
Gearbox
Sheet.211
Sheet.212
RX Gearbox
Gearbox
Sheet.213
Sheet.97
X21784-031419
