Altera SDI II MegaCore User Manual
Page 70
Table 4-5: Transmitter Protocol Signals
Note: S = Indicates the number of streams; 4 for multi standard (up to 12G) mode and 1 for other modes.
Signal
Width Direction
Description
tx_rst
1
Input
Transmitter reset signal. This signal is active high and level
sensitive. This reset signal must be synchronous to
tx_coreclk
clock domain.
tx_pclk
1
Input
Transmitter parallel clock input. Driven by the
tx_clkout
signal.
• SD-SDI = 148.5 MHz
• HD-SDI = 74.25 MHz or 74.175 MHz
• 3G-SDI/6G-SDI/12G-SDI = 148.5 MHz or 148.35 MHz
• HD-SDI Dual Link = 74.25 MHz or 74.175 MHz
• Dual Standard = 148.5 MHz or 148.35 MHz
• Triple Standard = 148.5 MHz or 148.35 MHz
tx_enable_crc
1
Input
Enables CRC insertion for all modes except SD-SDI.
tx_enable_ln
1
Input
Enables LN insertion for all modes except SD-SDI.
tx_ln
11S
Input
Transmitter line number.
Not applicable when you disable the Insert Video Payload ID
(SMPTE 352M) option in SD-SDI.
tx_std
2
Input
Transmitter video standard. Applicable for 3G-SDI and multi
standard only.
• SD-SDI = 000
• HD-SDI = 001
• 3G-SDI Level B = 010
• 3G-SDI Level A = 011
• 6G-SDI Level B = 100
• 6G-SDI Level A = 101
• 12G-SDI Level B = 110
• 12G-SDI Level A = 111
4-28
SDI II IP Core Signals
UG-01125
2015.05.04
Altera Corporation
SDI II IP Core Functional Description