XOR Tree
© 2010 Advanced Micro Devices, Inc.
47062 SR5650 Databook 2.00
Proprietary
7-3
7.3.4
XOR Tree for the SR5650
The XOR start signal is applied at the TDI Pin of the JTAG circuitry and the output of the XOR tree is obtained at the
TDO Pin. Refer to
for the list of the signals included on the XOR tree.
There is no specific order to these signals in the tree. A toggle of any of these balls in the XOR tree will cause the output
to toggle. When the XOR tree is activated, any pin on the XOR tree must be either pulled down or pulled up to the I/O
voltage of the pin. Only pins that are
not
on the XOR tree can be left floating.
When differential signal pairs are listed as single entries on the XOR tree, opposite input values should be applied to the
two signals in each pair (e.g., for entry no. 1 on the tree, when “1” is applied to HT_RXCAD0P, “0” should be applied to
HT_RXCAD0N).
Table 7-3 SR5650 XOR Tree
No.
Pin Name
Ball Ref.
1
HT_RXCAD0P/N
AD28/AD27
2
HT_RXCAD1P/N
AC27/AC26
3
HT_RXCAD2P/N
AB28/AB27
4
HT_RXCAD3P/N
AA27/AA26
5
HT_RXCAD4P/N
W27/W26
6
HT_RXCAD5P/N
V28/V27
7
HT_RXCAD6P/N
U27/U26
8
HT_RXCAD7P/N
T28/T27
9
HT_RXCTL0P/N
R27/R26
10
HT_RXCAD8P/N
AD25/AD24
11
HT_RXCAD9P/N
AC24/AC23
12
HT_RXCAD10P/N
AB25/AB24
13
HT_RXCAD11P/N
AA24/AA23
14
HT_RXCAD12P/N
W24/W23
15
HT_RXCAD13P/N
V25/V24
16
HT_RXCAD14P/N
U24/U23
17
HT_RXCAD15P/N
T25/T24
18
HT_RXCTL1P/N
R24/R23
19
GPP1_RX0P/N
E11/F11
20
GPP1_RX1P/N
D10/E10
21
GPP1_RX2P/N
E9/F9
22
GPP1_RX3P/N
D8/E8
23
GPP1_RX4P/N
E7/F7
24
GPP1_RX5P/N
D6/E6
25
GPP1_RX6P/N
B5/C5
26
GPP1_RX7P/N
D2/D1
27
GPP1_RX8P/N
F5/F4
28
GPP1_RX9P/N
G6/G5
29
GPP1_RX10P/N
H5/H4
30
GPP1_RX11P/N
J6/J5
31
GPP1_RX12P/N
K5/K4
32
GPP1_RX13P/N
L6/L5
33
GPP1_RX14P/N
M5/M4
34
GPP1_RX15P/N
N6/N5
35
NC/NC
P5/P4
36
NC/NC
R6/R5
37
NC/NC
T5/T4
38
NC/NC
U6/U5
39
NC/NC
V5/V4
40
NC/NC
W6/W5
41
NC/NC
Y5/Y4
42
NC/NC
AA6/AA5
43
NC/NC
AB5/AB4
44
NC/NC
AD2/AD1
45
NC/NC
AF2/AF1
46
NC/NC
AF5/AG5
47
NC/NC
AD6/AE6
48
NC/NC
AC7/AD7
49
NC/NC
AD8/AE8
50
NC/NC
AC9/AD9
51
GPP3_RX0P/N
AH20/AG20
52
GPP3_RX1P/N
AD19/AC19
53
GPP3_RX2P/N
AE18/AD18
54
GPP3_RX3P/N
AD17/AC17
55
GPP3_RX4P/N
AE16/AD16
56
GPP3_RX5P/N
AD15/AC15
No.
Pin Name
Ball Ref.