Datasheet

LTC2974
65
2974fc
For more information www.linear.com/LTC2974
b[2] Status_mfr_dac_saturated A previous servo operation terminated with maximum or minimum
DAC value.
Current Page Yes No No
b[1] Status_mfr_auxfaultb_faulted_off AUXFAULTB has been de-asserted due to a V
OUT
or I
OUT
fault. All No No No
b[0] Status_mfr_watchdog_fault 1 = A watchdog fault has occurred.
0 = No watchdog fault has occurred.
All
Yes Yes No
MFR_PADS
The MFR_PADS command provides read-only access of digital pads (pins). The input values are before any deglitch-
ing logic.
MFR_PADS Data Contents
BIT(S) SYMBOL OPERATION
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[13:12] Mfr_pads_faultb_drive[1:0] bit[1] used for FAULTB0 pad, bit[0] used for FAULTB1 pad as follows:
0 = FAULTB pad is being driven low by this chip.
1 = FAULTB pad is not being driven low by this chip.
b[11:10] Reserved[1:0] Always returns 00b.
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[3:2] Mfr_pads_faultb[1:0] bit[1] used for FAULTB0 pad, bit[0] used for FAULTB1 pad as follows:
1: Logic high detected on FAULTB pad.
0: Logic low detected on FAULTB pad.
b[1] Mfr_pads_control2 1: Logic high detected on CONTROL2 pad.
0: Logic low detected on CONTROL2 pad.
b[0] Mfr_pads_control3 1: Logic high detected on CONTROL3 pad.
0: Logic low detected on CONTROL3 pad.
MFR_COMMON
This command returns status information for the alert, device busy, share-clock pin (SHARE_CLK) and the write-protect
pin (WP).
pMbus coMManD DescripTion