Avnet Xilinx Virtex-II, User Manual

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17 of 25 Rev 1.0 06/08/2004
Released Literature # ADS-xxxx04
3.6.2 Memory Expansion Connector Interface
A memory expansion interface interconnects the memory signals to the development module for the option to implement
increased memory capabilities, different memory technologies or a host controller. In addition to the standard memory
signals, additional spare I/O signals are routed to the connector to allow for arbitration and control. Unknown bus
loading from the development module must be considered to ensure the local memory bus functionality with all types of
development modules installed. Two 140-pin connectors are paired to provide this interface. See Table 10 for memory
AvBus connector pin assignment.
Name
P4
Connector
Pin #
Name Name
P5
Connector
Pin #
Name
ADDR_AV0 71 1 +5V DATA_AV32 71 1 +5V
GND 72 2 ADDR_AV1 GND 72 2 DATA_AV33
ADDR_AV3 73 3 ADDR_AV2 DATA_AV35 73 3 DATA_AV34
ADDR_AV4 74 4 GND DATA_AV36 74 4 GND
GND 75 5 ADDR_AV5 GND 75 5 DATA_AV37
ADDR_AV7 76 6 ADDR_AV6 DATA_AV39 76 6 DATA_AV38
ADDR_AV8 77 7 GND DATA_AV40 77 7 GND
+3.3V 78 8 ADDR_AV9 +3.3V 78 8 DATA_AV41
ADDR_AV11 79 9 ADDR_AV10 DATA_AV43 79 9 DATA_AV42
ADDR_AV12 80 10 GND DATA_AV44 80 10 GND
GND 81 11 ADDR_AV13 GND 81 11 DATA_AV45
ADDR_AV15 82 12 ADDR_AV14 DATA_AV47 82 12 DATA_AV46
ADDR_AV16 83 13 +5V DATA_AV48 83 13 +5V
GND 84 14 ADDR_AV17 GND 84 14 DATA_AV49
ADDR_AV19 85 15 ADDR_AV18 DATA_AV51 85 15 DATA_AV50
ADDR_AV20 86 16 GND DATA_AV52 86 16 GND
GND 87 17 ADDR_AV21 GND 87 17 DATA_AV53
ADDR_AV23 88 18 ADDR_AV22 DATA_AV55 88 18 DATA_AV54
ADDR_AV24 89 19 GND DATA_AV56 89 19 GND
+3.3V 90 20 ADDR_AV25 +3.3V 90 20 DATA_AV57
ADDR_AV27 91 21 ADDR_AV26 DATA_AV59 91 21 DATA_AV58
ADDR_AV28 92 22 GND DATA_AV60 92 22 GND
GND 93 23 ADDR_AV29 GND 93 23 DATA_AV61
ADDR_AV31 94 24 ADDR_AV30 DATA_AV63 94 24 DATA_AV62
DATA_AV0 95 25 +5V FLASH_CE2# 95 25 +5V
GND 96 26 DATA_AV1 GND 96 26 FLASH_CE3#
DATA_AV3 97 27 DATA_AV2 SDRAM_BYTE5 97 27 SDRAM_BYTE4
DATA_AV4 98 28 GND SDRAM_BYTE6 98 28 GND
GND 99 29 DATA_AV5 GND 99 29 SDRAM_BYTE7
DATA_AV7 100 30 DATA_AV6 MEM_IO_7 100 30 MEM_IO_6
DATA_AV8 101 31 GND MEM_IO_8 101 31 GND
+3.3V 102 32 DATA_AV9 +3.3V 102 32 MEM_IO_9
DATA_AV11 103 33 DATA_AV10 MEM_IO_11 103 33 MEM_IO_10
DATA_AV12 104 34 GND MEM_IO_12 104 34 GND
GND 105 35 DATA_AV13 GND 105 35 MEM_IO_13
DATA_AV15 106 36 DATA_AV14 MEM_IO_15 106 36 MEM_IO_14
DATA_AV16 107 37 +5V MEM_IO_16 107 37 +5V
GND 108 38 DATA_AV17 GND 108 38 MEM_IO_17
DATA_AV19 109 39 DATA_AV18 MEM_IO_19 109 39 MEM_IO_18
DATA_AV20 110 40 GND MEM_IO_20 110 40 GND
GND 111 41 DATA_AV21 GND 111 41 MEM_IO_21
DATA_AV23 112 42 DATA_AV22 MEM_IO_23 112 42 MEM_IO_22
DATA_AV24 113 43 GND MEM_IO_24 113 43 GND
+3.3V 114 44 DATA_AV25 +3.3V 114 44 MEM_IO_25