DS2465 MAXIM [Maxim Integrated Products], DS2465 Datasheet - Page 12

• Manufacturer Part Number: DS2465
• Description: SHA-256 Coprocessor with 1-Wire Master Function
• Manufacturer: MAXIM [Maxim Integrated Products]

Table 6. Conversion between parameter value code and typical parameter value
Note: The power-on default values are bold.
This byte reads AAh.
This byte reads 00h.
The DS2465 understands
set automatically by each function command for the host to efficiently access relevant information. The host processor
sends these commands and applicable parameters as strings of one or two bytes using the I
tocol requires that each byte be acknowledged by the receiving party to confirm acceptance or not be acknowledged
to indicate an error condition (invalid code or parameter) or to end the communication. See the
details of the I
Refer to the full data sheet for this information.
SHA-256 Coprocessor with 1-Wire Master Function
PARAMETER VALUE CODE
0000b
0001b
0010b
0011b
0100b
0101b
0110b
0111b
1000b
1001b
1010b
1011b
1100b
1101b
1110b
1111b
2
C protocol including acknowledge. The function commands are as follows:
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function commands. The feedback path to the host is controlled by a read pointer, which is
VALUE IN µs
STD
440
460
480
500
520
540
560
580
600
620
640
660
680
700
720
740
Refer to the full data sheet for this information.
t
RSTL
OD
44
46
48
50
52
54
56
58
60
62
64
66
68
70
72
74
VALUE IN µs
STD
58
58
60
62
64
66
68
70
72
74
76
76
76
76
76
76
t
MSP
10.0
10.5
11.0
11.0
11.0
11.0
OD
5.5
5.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
VALUE IN µs
STD
52
54
56
58
60
62
64
66
68
70
70
70
70
70
70
70
t
W0L
OD
5.0
5.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
10
10
10
10
10
10
VALUE IN µs
STD, OD
t
REC0
10.0
12.5
15.0
17.5
20.0
22.5
25.0
25.0
2.5
2.5
2.5
2.5
2.5
2.5
5.0
7.5
Function Commands
Personality Byte (73h)
VALUE IN ω
STD, OD
2
R
C interface. The I
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
Factory Byte (70h)
I
500
500
500
500
500
500
WPU
2
C Interface
DS2465
VALUE IN µs
do not use
section for
t
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
2.25
2.50
2.75
3.00
3.25
3.50
3.75
W1L
OD
2
C pro-