TCN75A
• Writing to the TSET Register to set the temperature limit to 90°C, <0101 1010 0000 0000>b
SCL
12 345678
12345678
SDA
S
1
0
0
1
A
2
A
1
A
0
W
A
C
K
0
0
0
0
0
0
1
1
A
C
K
Address Byte
TCN75A
TSET Pointer
TCN75A
12345678
12345678
A
A
0
1
0
1
1
0
1
0
C
K
0
0
0
0
0
0
0
0
C
K
P
MSB Data
TCN75A
LSB Data
TCN75A
• Reading the TSET Register.
SCL
12 345678
12345678
SDA
S
1
0
0
1
A
2
A
1
A
0
W
A
C
K
0
0
0
0
0
0
1
1
A
C
K
Address Byte
TCN75A
TSET Pointer
TCN75A
Note:
It is not necessary to
select the register
pointer if it was set from
the previous read/write.
(see Section 4.1.1)
SCL
SDA
1 2 34 5678
12345678
12345678
S1
0
0
1
AAA
210
A
R
C
K
0
1
0
1
1
0
1
0
A
C
K
0
0
0
0
0
0
0
N
0 AP
K
Address Byte
TCN75A
MSB Data
Master
LSB Data
Master
FIGURE 5-5:
Timing Diagram for Writing and Reading from the Temperature Limit-set Register
(See Section 4.0 “Serial Communication”).
DS21935C-page 20
© 2006 Microchip Technology Inc.