HC4GX15 Datasheet, PDF (616/668 Pages) Altera Corporation – HardCopy IV Device Handbook

3–10
Chapter 3: HardCopy IV GX ALTGX_RECONFIG Megafunction User Guide
Dynamic Reconfiguration
Table 3–3. MegaWizard Plug-In Manager Options (Page 5) (Part 2 of 2)
ALTGX_RECONFIG Setting
Use ‘logical_tx_pll_sel’
Use ‘logical_tx_pll_sel_en’
Description
Reference
This is an optional control signal. The
logical_tx_pll_sel[1:0] signal refers to the
logical reference index of the CMU PLL. The
functionality of the signal depends on the feature
activated, as shown below:
■ CMU PLL reconfiguration—The corresponding
CMU PLL is reconfigured based on the value at
logical_tx_pll_sel[1:0].
“The logical_tx_pll_sel and
logical_tx_pll_sel_en Ports”
section in the HardCopy IV GX
Dynamic Reconfiguration chapter
in volume 3 of the HardCopy IV
Device Handbook
■ Channel and CMU PLL reconfiguration—The
corresponding CMU PLL is reconfigured based on
the value at this signal. The transceiver channel
listens to the CMU PLL selected by
logical_tx_pll_sel[1:0].
■ Channel reconfiguration with TX PLL select—The
transceiver channel listens to the TX PLL selected
by logical_tx_pll_sel[1:0].
This is an optional control signal. When you enable
this signal, the value set on the
logical_tx_pll_sel[1:0] signal is valid only
if logical_tx_pll_sel_en is set to 1.
“The logical_tx_pll_sel and
logical_tx_pll_sel_en Ports”
section in the HardCopy IV GX
Dynamic Reconfiguration chapter
in volume 3 of the HardCopy IV
Device Handbook
Figure 3–6 shows page 6 of the ALTGX_RECONFIG MegaWizard Plug-In Manager.
Figure 3–6. MegaWizard Plug-In Manager—ALTGX_RECONFIG (Error Checks/Data Rate Switch)
HardCopy IV Device Handbook Volume 3
© June 2009 Altera Corporation