Datasheet

Table 27. FRWY-LS1046A LEDs (continued)
Reference
designator
LED color LED name Description (when LED is ON)
D509 Green 4_GRN_LED Four stacked LEDs to indicate:
• Power status
• System readyness
• PROG_SFP fuse programming power enable
1. It is placed on the bottom side of PCB next to J46 connector.
2.18 System reset
The figure below shows the reset diagram for the FRWY-LS1046A.
LS1046A
J TAG
CPU_J TAG_R ST_B
PORESET_B
TRST_B
OVDD
74AUP1G11GW
OVDD
OVDD
74LVC1G07GW
OVDD
74LVC1G07GW
PORE SE T_B
Reset
control
PORST
ADM8611
3V3
HRE SET_B
OVDD
RESE T_REQ_B
CPU_PORE SET_B
E N/DIS
(OVDD)
(OVDD)
(OVDD)
OVDD
MR_B
(OVDD)
OVDD
74AUP1G09GW
3V3
SLOT1_R ST_B
OVDD
74AUP1G11GW
OVDD
ALT_SY S_R ST_B
OVDD
OVDD
74AUP1G09GW
OVDD
PW R_GOOD
(From Regulator/PMIC
PG OOD)
CPU_HRES ET_B
OVDD
GV DD
74LVC1G07GW
RST_MEM_B
CPU_HRES ET_B
PORE SE T_B
OVDD
74AUP1G09GW
3V3
SLOT2_R ST_B
OVDD
OVDD
74AUP1G09GW
3V3
QS GPHY1_R ST_B
OVDD
OVDD
74AUP1G09GW
3V3
uB US 1_R ST
OVDD
GPIO3_20
GPIO3_25
SW _SLOT1_R ST_B
To M.2 Slot1
To M.2 Slot2
SW _S LOT2_R ST_B
GPIO3_26
SW _QS GPHY1_R ST_B
GPIO3_27
SW _uB US 1_R ST
To QSGMII PHY
To Mikro-Click
Figure 25. FRWY-LS1046A reset diagram
System reset can be triggered from various sources, as described in the table below.
FRWY-LS1046A Functional Description
Layerscape FRWY-LS1046A Board Reference Manual, Rev. 0, 26 April 2019
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NXP Semiconductors