Getting to Know the Hardware
KTVR500UG Rev. 1.0 8/2014
12
Freescale Semiconductor, Inc.
3.7.2
PMIC LED Indicators
LED indicators are provided to notify the PMIC status to the user.
Figure 8
shows the PMIC status LEDs D2 and D4, and a Reserved
LED indicator D3, that allows for an external rework connection to the transistor gate if any given signal debug is required.
Figure 8. PMIC Status Indicators
Table 7
describes the meaning of the LED state.
Table 7. LED State Description
LED
Description
D2
Interrupt Notification
ON = PMIC has detected an unmasked interrupt
OFF = No interrupt detected
D3
PORB Notification
Green = PMIC is in regulation and operating properly
Red = PMIC is out of regulation
D1
Reserved debug LED
ON = Q3 gate (R84 pad) is low
OFF = Q3 gate (R84 pad) is high or floating
R
O
T
A
C
I
D
N
I
N
W
O
D
T
U
H
S
R
O
T
A
C
I
D
N
I
T
P
U
R
R
E
T
N
I
INT_B
EN
INT_B
EN
PVIN
PVIN
3
B
_
T
N
I
5
,
3
N
E
R2
200 OHM
Q2
FDV302P
1
3
2
D1
LED Red
A
C
Q3
FDV302P
1
3
2
D2
LED Red
A
C
R3
200 OHM
RESET INDICATOR
POR_B
POR_B
PVIN
PVIN
POR_B
3
Red
Grn
D3
LED_RED-GRN
4
2
1
3
R4
200 OHM
G
D
S
G
S
D
Q1
FDC6327C
2
6
1
5
4
3
R1
200 OHM
