Manual

42 _____________________________________________________________________________________
MAX5971B
Single-Port, 40W, IEEE 802.3af/at,
PSE Controller with I
2
C
Table 40. Register Summary (continued)
ADDR REGISTER NAME R/W BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
RESET
STATE
PUSHBUTTONS
18h Reserved — Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved —
19h Power Enable W Reserved Reserved Reserved PWR_OFF Reserved Reserved Reserved PWR_ON
0000 to
0000
1Ah Global W CLR_INT Reserved Reserved RESET_IC Reserved Reserved Reserved RESET_P
0000 to
0000
GENERAL
1Bh ID R ID_CODE[4] ID_CODE[3] ID_CODE[2] ID_CODE[1] ID_CODE[0] REV [2] REV [1] REV [0]
1000 to
0xxx
1Ch SMODE CoR Reserved Reserved Reserved Reserved Reserved Reserved Reserved SMODE
0000 to
0000
1Dh Reserved — Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved —
1EH Watchdog R/W WDTIME[7] WDTIME[6] WDTIME[5] WDTIME[4] WDTIME[3] WDTIME[2] WDTIME[1] WDTIME[0]
0000 to
0000
1FH Switch Mode R/W EN_WHDOG WD_INT_EN Reserved Reserved Reserved Reserved Reserved HWMODE
0000 to
0000
SPECIAL/RESERVED
20H Reserved — Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved —
21H Reserved — Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved —
22H Reserved — Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved —
23H Program R/W Reserved Reserved CLC_EN DET_BY Reserved AC_TH[2] AC_TH[1] AC_TH[0]
00x0 to
0100
24h PWM R/W Reserved Reserved PWM_TH[1] PWM_TH[0] Reserved Reserved Reserved Reserved
0000 to
0000
25h Reserved — Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved —
26h Reserved — Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved —
27H Reserved — Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved —
28H Reserved — Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved —
29H
Miscellaneous
Configurations 2
R/W Reserved Reserved Reserved LSC_EN Reserved Reserved Reserved Reserved 0000-0000
2AH ICUT R/W Reserved Reserved Reserved Reserved Reserved ICUT[2] ICUT[1] ICUT[0]
0000 to
0000
2BH Reserved — Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved —
2CH Reserved — Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved —
2DH Reserved — Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved —
2EH Reserved — Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved —
2FH Reserved — Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved —