MAX1617 ON Semiconductor, MAX1617 Datasheet - Page 7

• Manufacturer Part Number: MAX1617
• Description: SMBus Temperature Sensor with Internal and External Diode Input
• Manufacturer: ON Semiconductor

CONV_RATE
YES
according to
Rest Period
One Shot?
register
period
over?
Rest
NO
NO
YES
* POR = Power On Reset; ARA = Alert Response Address; EOC = End Of Conversion
NO
POR*, initialize
NO
STATUS
STATUS [D7]
Start internal
bit D[7]
STBY mode
Reset
all registers
conversion
Start external
NO
conversion
active?
active?
EOC*?
EXT_TEMP
STBY
Ext. diode
active?
Thermal
EOC*?
open?
Update
STBY
Trip?
Figure 2. MAX1617 Functional Description Flowchart
NO
YES
NO
NO
YES
NO
YES
YES
YES
YES
Set appropriate
YES
STATUS bit
YES
D[6:2]
NO
released?
STBY
INT_TEMP
http://onsemi.com
NO
Update
Thermal
STATUS D[7]
Trip?
Stop conv.,
NO
MAX1617
Perform one
conversion
reset
YES
shot?
One
cycle
[D7] active?
7
NO
CONFIG
ALERT#
Enable
YES
YES
YES
NO
Address
Monitor SMBus
match?
for START
condition
NO
READ
command?
NO
STATUS
local address to host
Write?
Disable and re–arm
Read/
read?
Valid
ALERT, send
arbitration?
arbitration?
NO
ARA* bus
YES
active ?
ALERT
YES
WRITE
ARA*?
Win
NO
YES
YES
YES
Status read
and clear
STATUS
Execute
Execute
Execute
SMBus
SMBus
read
write