ARM ARM7TDMI Hardware Reference Guide

Open Access
A-7
ARM Development Board (ARM7TDMI Version)
Hardware Reference Guide
ARM DUI 0017C
Board Schematics
A.6 “On-chip” Memory (Synchronous SRAM)
Date: February 26, 1996 Sheet
Size Document Number
B EOI-0011B (ONCHIP.
S
Title
’On chip’ (synchronous SR
A
CB1 4JN
CAMBRIDGE
CHERRY HINTON
FULBOURN ROAD
(C) ADVANCED RISC MAC
SYNCHRONOUS SRAM
R58
10K
R59
10K
n
B
W
1
n
B
W
2
n
B
W
3
n
B
W
4
n
A
D
S
P
V
D
D
G
N
D
G
N
D
G
N
D
n
O
E
n
A
D
S
C
n
A
D
V
B
_
A
1
0
B
_
A
1
1
B
_
C
L
K
2
X
1
n
G
W
VDD VDD
R54
10K
n
C
E
C
E
2
B
_
A
8
B
_
A
9
VDD
SSRAM CONTROLLER
MONITOR POINTS
1
V33
1
V34
B_WAIT
B_WAIT
B_D[31..0]
B_A[18..0]
B_RES0
D_SELSSRAM
B_SIZE[1..0]
B_WRITE
BIGEND
B_CLK2X[1..0]
B_D[31..0]
B_A[18..0]
B_RES0
B_SIZE[1..0]
D_SELSSRAM
B_WRITE
BIGEND
B_CLK2X[1..0]
B_A0
B_A1
B_SIZE0
B_SIZE1
B_WRITE
BIGEND
MONITOR POINT
I3
5
I4
6
I5
7
NC
8
I6
9
I7
10
I8
11
I
9
1
2
I
1
0
1
3
G
N
D
1
4
N
C
1
5
I
1
1
1
6
I
O
0
1
7
I
O
1
1
8
I02
19
IO3
20
IO4
21
NC/GND
22
IO5
23
IO6
24
IO7
25
I
O
8
2
6
I
O
9
2
7
V
C
C
2
8
N
C
1
C
L
K
/
I
0
2
I
1
3
I
2
4
U8
22V10PLCC-7
1
V32
B
_
R
E
S
0
nBW2
nBW3
nBW4
GND
nOE
nCE
nADSP
S
T
A
T
E
0
S
T
A
T
E
1
V
C
C
D
_
S
E
L
S
S
R
A
M
B
_
C
L
K
2
X
0
DQP3
1
DQ17
2
DQ18
3
VDDQ
4
VSSQ
5
DQ19
6
DQ20
7
DQ21
8
DQ22
9
VSSQ
10
VDDQ
11
DQ23
12
DQ24
13
PL
14
VDD
15
NC
16
VSS
17
DQ25
18
DQ26
19
VDDQ
20
VSSQ
21
DQ27
22
DQ28
23
DQ29
24
DQ30
25
VSSQ
26
VDDQ
27
DQ31
28
DQ32
29
DQP4
30
M
O
D
E
3
1
A
5
3
2
A
4
3
3
A
3
3
4
A
2
3
5
A
1
3
6
A
0
3
7
N
C
3
8
N
C
3
9
V
S
S
4
0
V
D
D
4
1
N
C
4
2
N
C
4
3
A
1
0
4
4
A
1
1
4
5
A
1
2
4
6
A
1
3
4
7
A
1
4
4
8
N
C
/
A
1
5
4
9
N
C
/
A
1
6
5
0
DQP1
51
DQ1
52
DQ2
53
VDDQ
54
VSSQ
55
DQ3
56
DQ4
57
DQ5
58
DQ6
59
VSSQ
60
VDDQ
61
DQ7
62
DQ8
63
ZZ
64
VDD
65
NC
66
VSS
67
DQ9
68
DQ10
69
VDDQ
70
VSSQ
71
DQ11
72
DQ12
73
DQ13
74
DQ14
75
VSSQ
76
VDDQ
77
DQ15
78
DQ16
79
DQP2
80
A
9
8
1
A
8
8
2
A
D
V
*
8
3
A
D
S
P
*
8
4
A
D
S
C
*
8
5
O
E
*
8
6
B
W
E
*
8
7
G
W
*
8
8
C
L
K
8
9
V
S
S
9
0
V
D
D
9
1
C
E
2
*
9
2
B
W
1
*
9
3
B
W
2
*
9
4
B
W
3
*
9
5
B
W
4
*
9
6
C
E
2
9
7
C
E
*
9
8
A
7
9
9
A
6
1
0
0
U9
MT58L
C
A
1
C
2
B
3
LK5
SMLINK
B_D16
B_D17
B_D18
B_D19
B_D20
B_D21
B_D22
B_D23
VDD
GND
VDD
GND
VDD
PIPELINED
VDD
B
_
B
_
B
_
B
_
B
_
B
_
B
_
B
_
V
D
G
N
V
D
G
N
G
N
B
_
B
_
B
_
B
_
B
_
B
_
B
_
B
_
G
N
D
V
D
D
V
D
V
D
G
N
V
D
G
N
G
N
B
_
A
2
B
_
A
3
B
_
A
4
B
_
A
1
2
B
_
A
1
3
B
_
A
1
4
B
_
A
1
5
B
_
A
1
6
B
_
A
1
7
B
_
A
1
8
Default A-C
SSRAM POWERED AT 3.3V
B_D24
B_D25
B_D26
B_D27
B_D28
B_D29
B_D30
B_D31
GND
VDD
GND
VDD
GND
G
N
D
B
_
A
5
B
_
A
6
B
_
A
7
GND
B
_
W
A
I
T
n
B
W
1
G
N
D
SPARE INPUTS
1
V29
1
V30
R55
10K
R56
10K
R57
10K
1
V31
VDD VDD VDD
C12
10u
C17
100n
VCC
GND
VCC
GND
DECOUPLING CAPACITORS
WITH 5V TOLERANT I/O
C13
100n
C14
100n
C15
100n
C16
100n
VDD
VDD
GND
h
rg.
b
oo
k
P
age
7
W
e
d
nes
d
ay,
J
u
l
y
22
,
1998
9
:
18
AM

ARM ARM7TDMI Specifications

General

Brand	ARM
Model	ARM7TDMI
Category	Computer Hardware
Language	English