Table 10. LS1043ARDB operating voltages (continued)
Supply voltages
Description
Voltage value
AVDD_SD1_PLL1, AVDD_SD1_PLL2
Supply voltages (filtered from XVDD) for SerDes PLLs
1 and 2
1.35 V
G1VDD voltage
I/O supply voltage for DDR DRAM
1.2 V
S1VDD voltage
Core power supply for the SerDes transceivers
1.0 V
X1VDD voltage
Pad power supply for the SerDes transceivers
1.35 V
OVDD voltage
General I/O supply: Used for GPIO1, GPIO2, DSPI,
eSDHC[4:7], SYSCLK, DDRCLK, and IFC system
control and power management, clocking, debug, and
JTAG I/O
1.8 V
LVDD voltage
Ethernet supply voltage
1.8 V
DVDD voltage
Supply voltage for DUART, I2C, DMA, QE, GPIO1,
GPIO4, and USB control
3.3 V
EVDD voltage
Supply voltage for eSDHC[0:3]/CLK/CMD and GPIO2 3.3 V / 1.8 V
TVDD voltage
Supply voltage for Ethernet management interface 2
(EMI2) and GPIO4
1.2 V
2V5 voltage
AQR105 VDD_IO supply voltage
2.5 V
FA_VL voltage
Reserved for internal use
0 V / (1.0 V - optional)
PROG_MTR
Reserved for internal use
0 V / (1.8 V - optional)
PROG_SFP
Security fuse programming override supply
0 V / (1.8 V - optional)
TH_VDD
Thermal monitor unit supply
1.8 V
TA_BB_VDD voltage
Low power security monitor supply
1.0 V
VDD
Core and platform supply
1.0 V
USB_SVDD1 and 2
USB PHY analog supply
1.0 V
USB_SDVDD1 and 2
USB PHY digital supply
1.0 V
USB_HVDD1 and 2
USB PHY transceiver supply
3.3 V
VPP voltage
DDR1, 2, and 3 activating power supply
2.5 V
VREF (DDR VREF voltage)
DDR VREF voltage power supply
0.6 V
VTT1 (DDR3_VTT voltage)
DDR3 termination voltage power supply
0.6 V
The table below shows the default LS1043ARDB clock rates.
Table 11. LS1043ARDB clock rates
Clock
Description
Frequency
Core clock
Depends on RCW
1600 MHz
Platform clock
Depends on RCW
400 MHz
SYSCLK (differential or single-end
SYSCLK)
System clock
100 MHz
RTC CLK
Real-time clock
32.768 kHz
DDR CLK
DDR clock
100 MHz
SD1_REF1 CLK
SerDes1 reference clock 1
156.25 MHz
SD1_REF2 CLK
SerDes1 reference clock 2
100 MHz
LS1043ARDB operating configurations
QorIQ LS1043A Reference Design Board Quick Start, Rev. 1, 11/2015
Freescale Semiconductor, Inc.
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