S2P2 - S-LINK/P2 signal mappings
| Pin |
Row A |
Row C |
|
1
|
LEMA[2]
|
LEMA[1]
|
|
2
|
LEMA[4]
|
LEMA[3]
|
|
3
|
LEMB[2]
|
LEMB[1]
|
|
4
|
LEMB[4]
|
LEMB[3]
|
|
5
|
LEMB[6]
|
LEMB[5]
|
|
6
|
LEMB[8]
|
LEMB[7]
|
|
7
|
GROUPAIN#
|
LEMOEN#
|
|
8
|
GROUPBIN#
|
URL[2]
|
|
9
|
URL[3]
|
URL[1]
|
|
10
|
LDOWN#
|
URL[0]
|
|
11
|
URESET#
|
UXOFF#
|
|
12
|
UDW[1]
|
UTDO#
|
|
13
|
LD[31]
|
UDW[0]
|
|
14
|
LD[29]
|
LD[30]
|
|
15
|
LD[27]
|
LD[28]
|
|
16
|
LD[26]
|
LWEN#
|
|
17
|
LDERR#
|
LD[25]
|
|
18
|
LCTRL#
|
LD[24]
|
|
19
|
LD[23]
|
LD[22]
|
|
20
|
LD[21]
|
LD[19]
|
|
21
|
LD[20]
|
LD[18]
|
|
22
|
LD[17]
|
LD[16]
|
|
23
|
LD[15]
|
LD[13]
|
|
24
|
LD[14]
|
LD[12]
|
|
25
|
LD[11]
|
LD[10]
|
|
26
|
LD[9]
|
LD[7]
|
|
27
|
LD[8]
|
LD[6]
|
|
28
|
LD[5]
|
LD[4]
|
|
29
|
LD[3]
|
LD[1]
|
|
30
|
LD[2]
|
LD[0]
|
|
31
|
GND
|
GND
|
|
32
|
LCLK
|
UCLK
|
Description of signals
S-LINK signals
See S-LINK specification. Names given for use
with Link Destination Card. UCLK should be used with Link Source Cards
(LCLK must be left open). For use with Link Destination Cards LCLK is used
(UCLK should be grounded). Note that the S2P2 has different components
mounted for either LSC or LDC use.
LEMO signals
-
LEMOEN#
-
to enable LEMO I/O, LEMOEN# should be 0. If set to 1, all buffers are in
tri-state.
-
GROUPAIN#, GROUPBIN#
-
to make a group of LEMOs input, GROUPAIN
-
LEMA[4:1]
-
Group A signals. Input (from LEMO to P2) if GROUPAIN# is low. Output (from
P2 to LEMO) if GROUPAIN# is high.
-
LEMB[8:1]
-
Group B signals. Input (from LEMO to P2) if GROUPBIN# is low. Output (from
P2 to LEMO) if GROUPBIN# is high.
CERN - High Speed Interconnect
- S-LINK
Erik van der Bij - 24 June 1998