Rainbow Electronics MAX7502 - Manual (Page 7)

MAX7500/MAX7501/MAX7502
Digital Temperature Sensors and Thermal
Watchdog with Bus Lockup Protection
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ADDRESS
BYTE
ADDRESS BYTE
ADDRESS
BYTE
ADDRESS
BYTE
DATA BYTE
(a) TYPICAL 2-BYTE READ FROM PRESET POINTER LOCATION SUCH AS TEMP, T
HIGH
, T
LOW
.
(b) TYPICAL POINTER SET FOLLOWED BY IMMEDIATE READ FOR 2-BYTE REGISTER SUCH AS TEMP, T
HIGH
, T
LOW
.
(c) TYPICAL 1-BYTE READ FROM CONFIGURATION REGISTER WITH PRESET POINTER.
MOST-SIGNIFICANT
DATA BYTE
LEAST-SIGNIFICANT
DATA BYTE
POINTER BYTE
MOST-SIGNIFICANT
DATA BYTE
LEAST-SIGNIFICANT
DATA BYTE
ACK BY
MAX7500/ MAX7501/ MAX7502 ACK BY MASTER
ACK BY
MAX7500/ MAX7501/ MAX7502
ACK BY
MAX7500/ MAX7501/ MAX7502
ACK BY MASTER
ACK BY
MAX7500/ MAX7501/ MAX7502
ACK BY MASTER
START
BY
MASTER
START
BY
MASTER
REPEAT START
BY
MASTER
START
BY
MASTER
STOP
COND BY MASTER
STOP
COND BY MASTER
STOP
COND BY MASTER
NO ACK BY
MASTER
NO
ACK BY MASTER
NO
ACK BY MASTER
Figure 3. I 2 C-Compatible Timing Diagram (Read)