Figure 3–32, Refer to, Figure 3–33 – Altera Serial Digital Interface (SDI) MegaCore Function User Manual
Page 78: Figure 3–34, Figure 3–35
3–48
Chapter 3: Functional Description
Signals
Serial Digital Interface (SDI) MegaCore Function
February 2013
Altera Corporation
User Guide
Figure 3–32. Behavior of tx_std, tx_trs, and tx_ln Signals—425MB
tx_pclk
EAV
SAV
EAV
tx_trs
txdata[19:10]
txdata[9:0]
3FF(C) 3FF(Y) 000(C) 000(Y) 000(C) 000(Y) XYZ(C) XYZ(Y)
3FF(C) 3FF(Y) 000(C)
10
000(Y) 000(C) 000(Y) XYZ(C) XYZ(Y)
tx_std[1:0]
tx_ln[21:11]
tx_ln[10:0]
3FF(C) 3FF(Y) 000(C) 000(Y) 000(C) 000(Y) XYZ(C) XYZ(Y)
3FF(C) 3FF(Y) 000(C) 000(Y) 000(C) 000(Y) XYZ(C) XYZ(Y)
3FF(C) 3FF(Y) 000(C) 000(Y) 000(C) 000(Y) XYZ(C) XYZ(Y)
3FF(C) 3FF(Y) 000(C) 000(Y) 000(C) 000(Y) XYZ(C) XYZ(Y)
11’d2
11’d3
11’d4
11’d1
Figure 3–33. Behavior of crc_error_y and crc_error_c Signals
Notes to
:
(1) When a CRC error occurs, the crc_error_y or crc_error_c signal goes high until the next line. For HD, Dual Link, and 3G Level A, only
crc_error_y[0]
and crc_error_c[0] signals are used. For 3G Level B, crc_error_y[0]and crc_error_c[0] signals are used for link B,
and crc_error_y[1]and crc_error_c[1] signals are used for link A.
(2) The CRC error signals are asserted after the CRC data checked, when the rx_H signal is high. A high CRC signal indicates that there is error in the
previous line data. In this case, both Y and C have CRC error.
(3) The CRC error signals are deasserted on the next line after the CRC data is checked.
rx_clk
rxdata[19:0]
crc_error_c
rxdata[9:0]
rx_V
rx_H
rx_ln
crc_error_y
000
000
000
3FF
XYZ
CRC1 CRC2
LN1
LN2
XYZ
CRC1 CRC2
LN1
LN2
000
3FF
000001a
000
000
000
3FF
XYZ
CRC1 CRC2
LN1
LN2
XYZ
CRC1 CRC2
LN1
LN2
000
3FF
000001b
(2)
(3)
Figure 3–34. Behavior of rx_data_valid Signal—425MA
Figure 3–35. Behavior of rx_data_valid Signal—425MB
rx_clk (148.5 MHz)
rxdata[19:10]
rxdata[9:0]
rx_data_valid_out[0]
rx_data_valid_out[1]
3FF(Y)
000(Y)
000(Y)
XYZ(Y)
000(Y)
3FF(C)
000(C)
000(C)
XYZ(C)
000(C)
rx_clk (148.5 MHz)
rxdata[19:10]
rxdata[9:0]
rx_data_valid_out[0]
rx_data_valid_out[1]
3FF(C)
3FF(Y)
000(C)
000(Y)
000(C)
000(Y)
XYZ(C)
000(Y)
3FF(C)
3FF(Y)
000(C)
000(Y)
000(C)
000(Y)
XYZ(C)
000(Y)