HC4GX15 Datasheet, PDF (534/668 Pages) Altera Corporation – HardCopy IV Device Handbook

2–76
Chapter 2: HardCopy IV GX Dynamic Reconfiguration
Description of Transceiver Channel Reconfiguration Modes
Figure 2–37 shows the functional blocks that you can dynamically reconfigure using
this feature.
Figure 2–37. Channel and CMU PLL Reconfiguration in a Transceiver Block
refclk0
refclk1
clock
mux
CMU Channel
CMU PLL0
Full Duplex Transceiver Channel
TX CHANNEL
Logical
TX PLL
select
LOCAL
DIVIDER
digital+analog logic
clock
mux
CMU PLL1
RX CHANNEL
clock
mux
RX PLL
digital+analog logic
Blocks that can be reconfigured in Channel and CMU PLL
Reconfiguration mode
Channel Reconfiguration Supported Configurations
Channel reconfiguration is applicable only to the following non-bonded
configurations of a physical transceiver channel:
■ Receiver and Transmitter configuration
■ Transmitter only configuration
■ Receiver only configuration
■ Independent Transmitter and Independent Receiver combined into the same
physical channel
In Transmitter only configuration, the physical transceiver channel has only one
transmitter. The .mif for the Transmitter only file has the bits for the transmitter
portion only. The Receiver only configuration is the same as the Transmitter only
configuration except it pertains to the receiver.
1 Channel reconfiguration from a Transmitter only configuration to a Receiver only
configuration and vice versa is not allowed.
HardCopy IV Device Handbook, Volume 3
© June 2009 Altera Corporation