Maxim Integrated DS21Q55 User Manual
Page 207
Product Preview
DS21Q55
207 of 248
012103
Please contact
or search
http://www.maxim-ic.com
for updated
information.
BIT
PIN
SYMBOL
TYPE
CONTROL BIT DESCRIPTION
53
48
TSIG
I
52
49
TESO (NXA)
O
51
50
TDATA (NXA)
I
50
51
TSYSCLK
I
49
52
TSSYNC
I
48
53
TCHCLK
O
47
-
ESIBS1.cntl
-
0 = ESIBS1 is an input; 1 = ESIBS1 is an output
46
54
ESIBS1
I/O
45
55
MUX
I
44
–
BUS.cntl
–
0 = D0-D7/AD0-AD7 are inputs;
1 = D0–D7/AD0–AD7 are outputs
43
56
D0/AD0
I/O
42
57
D1/AD1
I/O
41
58
D2/AD2
I/O
40
59
D3/AD3
I/O
60
DV
SS
–
61
DV
DD
–
39
62
D4/AD4
I/O
38
63
D5/AD5
I/O
37
64
D6/AD6
I/O
36
65
D7/AD7
I/O
35
66
A0
I
34
67
A1
I
33
68
A2
I
32
69
A3
I
31
70
A4
I
30
71
A5
I
29
72
A6
I
28
73
A7/ALE(AS)
I
27
74
RD*(DS*)
I
26
75
CS*
I
25
-
ESIBRD.cntl
-
0 = ESIBRD is an input;1 = ESIBRD is an output
24
76
ESIBRD
I/O
23
77
WR*(R/W*)
I
22
78
RLINK
O
21
79
RLCLK
O
80
DV
SS
–
81
DV
DD
20
82
RCLK
O
83
DV
DD
–
84
DV
SS
–
19
85
RDATA (NXA)
O
18
86
RPOSI
I
17
87
RNEGI
I
16
88
RCLKI
I
15
89
RCLKO
O
14
90
RNEGO
O
13
91
RPOSO
O
12
92
RCHCLK
O
11
93
RSIGF
O
10
94
RSIG
O
9
95
RSER
O
8
96
RMSYNC
O