Datasheet

MAX34451 PMBus 16-Channel V/I Monitor and
12-Channel Sequencer/Marginer
www.maximintegrated.com
Maxim Integrated │ 60
Table 37. MFR_PWM_CONFIG (E7h)
BIT NAME MEANING
31:16
PG_GPI_SELECT
ALARM_SELECT
ThesebitsareonlyusedifSELECT[2:0]=011or100;eachbitcorrespondstoonechannel
(devicechannelN+16=bitnumber):
SELECT[2:0] BITFUNCTION
011 Whenthisbitiscleared,thepowergood(PG)orGPIfromchannelNisnot
usedinthelogicalANDtoasserttheGPOnoutput.Whenthisbitisset,the
PGorGPIisused.
100 Whenthisbitiscleared,thealarmfromchannelNisblockedfromthe
logicalORtoasserttheGPOoutput.Whenthisbitisset,thealarmsignal
isroutedtothelogicalOR.
15:12 OFF_DELAY
Thesebitsdeterminethedelaytimetopindeassertion;whenthepinisoperatingasa
PGn/GPInoralarmpin(SELECT[2:0]=011or100):
OFF_DELAY[3:0] DELAYTIME OFF_DELAY[3:0] DELAYTIME
 0000 0ms 1000 200ms
 0001 5ms 1001 400ms
 0010 10ms 1010 600ms
 0011 20ms 1011 800ms

0100 40ms 1100 1000ms

0101 60ms 1101 1500ms

0110 80ms 11
10 2000ms
 0111 100ms 11
11 4000ms
11:8 ON_DELAY
Thesebitsdeterminethedelaytimetopinassertion;whenthepinisoperatingasa
PGn/GPInoralarmpin(SELECT[2:0]=011or100):
ON_DELAY[3:0] DELAYTIME ON_DELAY[3:0] DELAYTIME
 0000 0ms 1000 200ms
 0001 5ms 1001 400ms
 0010 10ms 1010 600ms
 0011 20ms 1011 800ms

0100 40ms 1100 1000ms

0101 60ms 1101 1500ms

0110 80ms 11
10 2000ms
 0111 100ms 11
11 4000ms
7 PP_OD
0=PWMn/GPOnpush-pulloutput
1=PWMn/GPOnopen-drainoutput
6 HI_LO
0=PWMn/GPOnactivelow
1=PWMn/GPOnactivehigh
5:3 0 Thesebitsalwaysreturna0.
2:0 SELECT[2:0]
Thesebitsdeterminethefunctionselectedonthepin:
SELECT[2:0] PWMn/GPOnPINSELECTEDFUNCTION
 000 PWMoperation
 001 ForceGPOassertion
 010 ForceGPOdeassertion
 011 PG/GPIoperation(usebits31:16)
 100 Alarmoperation(usebits31:16)
 101 FAULT1specialfunction(onlyPAGE7)
 11x Reserved