ep2sgx30c Altera Corporation, ep2sgx30c Datasheet - Page 19

• Manufacturer Part Number: ep2sgx30c
• Description: Stratix Ii Gx Device Data Sheet
• Manufacturer: Altera Corporation

Altera Corporation
October 2007
Serializer (Parallel-to-Serial Converter)
The serializer converts the parallel 8, 10, 16, or 20-bit data into a serial data
bit stream, transmitting the least significant bit (LSB) first. The serialized
data stream is then fed to the high-speed differential transmit buffer.
Figure 2–7
Figure 2–7. Serializer
Note to
(1)
Transmit Buffer
The Stratix II GX transceiver buffers support the 1.2- and 1.5-V PCML
I/O standard at rates up to 6.375 Gbps. The common mode voltage (V
of the output driver is programmable. The following V
available when the buffer is in 1.2- and 1.5-V PCML.
■
■
parallel clock
Low-speed
High-speed
serial clock
This is a 10-bit serializer. The serializer can also convert 8, 16, and 20 bits of data.
V
V
CM
CM
Figure
= 0.6 V
= 0.7 V
is a diagram of the serializer.
2–7:
10
Note (1)
Stratix II GX Device Handbook, Volume 1
D7
D6
D5
D4
D3
D2
D1
D0
D8
D9
Stratix II GX Architecture
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
CM
values are
Serial data
out (to output
buffer)
2–11
CM
)