A.4. Connector pinout

The static memory expansion board uses a 120-way Samtec QSH style connector. The Core Tile uses the corresponding 120-way Samtec QTH connector on the interface board, see Memory expansion connector pinout for details of the Core Tile signals on the memory connector. The connector pinout for the static memory board is shown in Table A.4.


The numbering of pins on the connector is for the connectors as viewed from below.

Table A.4. Static memory connector signals

Pin No.Signal Pin No.Signal
1DATA[0] 23V3
3DATA[1] 43V3
5DATA[2] 63V3
7DATA[3] 83V3
9DATA[4] 10VDDIO[a]
11DATA[5] 12VDDIOa
13DATA[6] 14VDDIOa
15DATA[7] 16VDDIOa
17DATA[8] 181V8
19DATA[9] 201V8
21DATA[10] 221V8
23DATA[11] 241V8
25DATA[12] 26NC
27DATA[13] 28Reserved, do not drive
29DATA[14] 30Reserved, do not drive
31DATA[15] 32Reserved, do not drive
33DATA[16] 345V
35DATA[17] 365V
37DATA[18] 385V
39DATA[19] 405V
41DATA[20] 42Reserved, do not drive
43DATA[21] 44Reserved, do not drive
45DATA[22] 46Reserved, do not drive
47DATA[23] 48Reserved, do not drive
49DATA[24] 50Reserved, do not drive
51DATA[25] 52Reserved, do not drive
53DATA[26] 54Reserved, do not drive
55DATA[27] 56Reserved, do not drive
57DATA[28] 58Reserved, do not drive
59DATA[29] 60Reserved, do not drive
61DATA[30] 62SBSCL, E2PROM serial interface clock (3.3V signal level)
63DATA[31] 64SBSDA, E2PROM serial interface data (3.3V signal level)
65ADDR[0] 66nRESET
67ADDR[1] 68nBOARDPOR, asserted on hardware power cycle
69ADDR[2] 70nFLWP, flash write protect. Drive HIGH to write to flash.
71ADDR[3] 72nEARLYRESET, Reset signal. Differs from nRESET in that it is not delayed by nWAIT.
73ADDR[4] 74nWAIT, Wait mode input from external memory controller. Pull HIGH if not used.
75ADDR[5] 76nBURSTWAIT, Synchronous burst wait input. This is used by the external device to delay a synchronous burst transfer if LOW. Pull to HIGH if not used.
77ADDR[6] 78CANCELWAIT, If HIGH, this signal enables the system to recover from an externally waited transfer that has taken longer than expected to finish. Pull LOW if not used.
79ADDR[7] 80nCS[4]
81ADDR[8] 82nCS[3]
83ADDR[9] 84nCS[2]
85ADDR[10] 86nCS[1]
87ADDR[11] 88Reserved, do not drive
89ADDR[12] 90Reserved, do not drive
91ADDR[13] 92Reserved, do not drive
93ADDR[14] 94Reserved, do not drive
95ADDR[15] 96nCS[0]
97ADDR[16] 98nBUSY, Indicates that memory is not ready to be released from reset. If LOW, this signal holds nRESET active.
99ADDR[17] 100nIRQ, interrupt request from memory board. This signal might be used by a memory-mapped peripheral implemented on the board.
101ADDR[18] 102nWEN, write enable for memory on expansion board.
103ADDR[19] 104nOEN, Output enable for memory data.
105ADDR[20] 106nBLS[3], Byte Lane Select for bits [31:24]
107ADDR[21] 108nBLS[2], Byte Lane Select for bits [23:16]
109ADDR[22] 110nBLS[1], Byte Lane Select for bits [15:8]
111ADDR[23] 111nBLS[0], Byte Lane Select for bits [7:0]
113ADDR[24] 114CSWIDTH[0], Indicates bus width for fitted part. Do not route through stackable boards.
115ADDR[25] 116CSWIDTH[1], Indicates bus width for fitted part. Do not route through stackable boards.
117ADDRVALID, Indicates that the address output is stable during synchronous burst transfers 118CLK[1]
119BAA, Burst Address Advance. Used to advance the address count in the memory device 120CLK[0]

[a] VDDIO is the data voltage to the host. Do not route through on stackable boards

Copyright © 2004-2011 ARM Limited. All rights reserved.ARM DUI 0273G