Altera SerialLite III Streaming MegaCore Function User Manual
Page 51

Signal
Width
Clock Domain
Direction
Description
error_tx
3 or 4
Standard
clocking:
user_clock
Advanced
clocking:
core_clock
Output
This vector indicates an overflow in the
source adaptation module’s FIFO buffer.
• Bit 0: Source adaptation module’s FIFO
buffer overflow
• Bit 1: Source PPM-absorption module’s
FIFO buffer overflow
ECC option:
• MSB-1: An SEU error occurred and was
corrected (ECC enabled). This bit is bit 2
in advanced clocking mode and bit 1 in
standard clocking mode.
Don't care (ECC disabled)
• MSB: An SEU error occurred and could
not be corrected (ECC enabled). This bit
is bit 3 in advanced clocking mode and bit
2 in standard clocking mode.
Don't care (ECC disabled)
The width of this signal depends on the
clocking mode:
• 3: Using standard clocking mode
• 4: Using advanced clocking mode
user_clock_rx
1
N.A.
Output
Clock for data transfers across the sink core
interface in the standard clocking mode.
user_clock_
reset_rx
1
user_clock_rx Output
In the standard clocking mode, the core
asserts this signal when the
core_reset
signal is high and deasserts this signal when
the reset sequence is complete.
interface_
clock_rx
1
core_clock
Output
Clock for data transfers across the sink core
interface in the advanced clocking mode.
interface_
clock_reset_rx
1
core_clock
Output
In the advanced clocking mode, the core
asserts this signal when the
core_reset
signal is high and deasserts this signal when
the reset sequence is complete.
UG-01126
2015.05.04
Signals
4-27
SerialLite III Streaming IP Core Functional Description
Altera Corporation