0 functional description, 0 smbus timing diagrams – Rainbow Electronics LM84 User Manual

Page 13

1.0 Functional Description

(Continued)

1.8.6 LOCAL AND REMOTE T_CRIT REGISTERS

(Read/Write):

MSB

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

LSB

D7–D0: RT_CRIT and LT_CRIT setpoint temperature data. Power up default is LT_CRIT = RT_CRIT = 127˚C.

2.0 SMBus Timing Diagrams

DS100961-10

(a) Serial Bus Write to the internal Command Register followed by a the Data Byte

DS100961-11

(b) Serial Bus Write to the internal Command Register

DS100961-12

(c) Serial Bus Read from a Register with the internal Command Register preset to desired value.

FIGURE 4. Serial Bus Timing Diagrams

LM84