Device Family: Arria® V GZ, Stratix® V GS, Stratix® V GX

Type: Answers

Area: Component, HSIO



How do I map the transceiver toolkit pre-emphasis pre-tap settings to the Quartus II transceiver QSF assignments in Stratix V GX and Arria V GZ devices?

Description

The pre-emphasis pre-tap is selectable between -15 to +15 on Stratix® V GX and Arria® GZ devices. You can set the Quartus® II pre-emphasis pre-tap QSF assignments by using either the XCVR_TX_PRE_EMP_PRE_TAP and XCVR_TX_PRE_EMP_INV_PRE_TAP QSF assignments, or you can set the XCVR_TX_PRE_EMP_PRE_TAP_USER QSF assignment.

The mapping of these settings to the Stratix V GX Transceiver Toolkit is defined below.

Toolkit Setting XCVR_TX_PRE_EMP_PRE_TAP Setting XCVR_TX_PRE_EMP_INV_PRE_TAP Setting XCVR_TX_PRE_EMP_PRE_TAP_USER Setting
15 15 FALSE 1
14 14 FALSE 2
13 13 FALSE 3
12 12 FALSE 4
11 11 FALSE 5
10 10 FALSE 6
9 9 FALSE 7
8 8 FALSE 8
7 7 FALSE 9
6 6 FALSE 10
5 5 FALSE 11
4 4 FALSE 12
3 3 FALSE 13
2 2 FALSE 14
1 1 FALSE 15
0 0 TRUE/FALSE 16
-1 1 TRUE 17
-2 2 TRUE 18
-3 3 TRUE 19
-4 4 TRUE 20
-5 5 TRUE 21
-6 6 TRUE 22
-7 7 TRUE 23
-8 8 TRUE 24
-9 9 TRUE 25
-10 10 TRUE 26
-11 11 TRUE 27
-12 12 TRUE 28
-13 13 TRUE 29
-14 14 TRUE 30
-15 15 TRUE 31