Linear Technology LTC2977 Demo Board: Octal Power Supply Manager [Requires DC1613] DC2028A DC2028A Data Sheet

LTC2977

58

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MFR_PADS
The MFR_PADS command provides read only access to slow frequency digital pads (pins). The input values presented 

in bits[9:0] are before any deglitching logic.

b[15] Mfr_pads_pwrgd_drive

0 = PWRGD pad is being driven low by this chip
1 = PWRGD pad is not being driven low by this chip

b[14] Mfr_pads_alertb_drive

0 = ALERTB pad is being driven low by this chip
1 = ALERTB pad is not being driven low by this chip

b[13:10] Mfr_pads_faultb_drive[3:0] Bit[3] used for FAULTB00 pad, bit[2] used for FAULTB01 pad, bit[1] used for FAULTB10 pad, bit[0] used for 

FAULTB11 pad as follows:
0 = FAULTBzn pad is being driven low by this chip
1 = FAULTBzn pad is not being driven low by this chip

b[9:8] Mfr_pads_asel1[1:0]

11: Logic high detected on ASEL1 input pad
10: ASEL1 input pad is floating
01: Reserved
00: Logic low detected on ASEL1 input pad

b[7:6] Mfr_pads_asel0[1:0]

11: Logic high detected on ASEL0 input pad
10: ASEL0 input pad is floating
01: Reserved
00: Logic low detected on ASEL0 input pad

b[5]

Mfr_pads_control1

1: Logic high detected on CONTROL1 pad
0: Logic low detected on CONTROL1 pad

b[4]

Mfr_pads_control0

1: Logic high detected on CONTROL0 pad
0: Logic low detected on CONTROL0 pad

b[3:0] Mfr_pads_faultb[3:0]

Bit[3] used for FAULTB00 pad, bit[2] used for FAULTB01 pad, bit[1] used for FAULTB10 pad, bit[0] used for 

FAULTB11 pad as follows:
1: Logic high detected on FAULTBzn pad
0: Logic low detected on FAULTBzn pad