Intel E3845 FH8065301487715 データシート
製品コード
FH8065301487715
Integrated Clock
Intel
®
Atom™ Processor E3800 Product Family
Datasheet
81
Table 46. SoC Clock Inputs
Clock Domain
Signal Name
Frequency
Usage/Description
Main ICLK_OSCIN
ICLK_OSCOUT
25 MHz
Reference crystal for the iCLK PLL
RTC
ILB_RTC_X1
ILB_RTC_X2
ILB_RTC_X2
32.768 kHz
RTC crystal I/O for RTC block
MIPI CSI
MCSI1_CLKP/N
MCSI2_CLKP/N
MCSI3_CLKP/N
MCSI2_CLKP/N
MCSI3_CLKP/N
80-500 MHz
Clocks for cameras
LPC
ILB_LPC_CLK[1]
33 MHz
Can be configured as an input to
compensate for board routing delays
through Soft Strap.
compensate for board routing delays
through Soft Strap.
USB PHY
USB_ULPI_CLK
60 MHz
Interface clock from ULPI PHY.
Table 47. SoC Clock Outputs (Sheet 1 of 2)
Clock Domain
Signal Name
Frequency
Usage/Description
Memory
DRAM0_CKP/N[2,0]
DRAM1_CKP/N[2,0]
DRAM1_CKP/N[2,0]
533/667 MHz
Drives the Memory ranks 0-1. Data
rate (MT/s) is 2x the clock rate.
Note: The frequency is fused in each
SoC. It is not possible to support both
frequencies on one SoC.
rate (MT/s) is 2x the clock rate.
Note: The frequency is fused in each
SoC. It is not possible to support both
frequencies on one SoC.
eMMC
MMC1_CLK
MMC1_45_CLK
MMC1_45_CLK
25-50 MHz
25-200 MHz
25-200 MHz
Clock for eMMC 4.41 devices
Clock for eMMC 4.51 devices
Actual clock can run as low as 400
kHz during initialization.
Clock for eMMC 4.51 devices
Actual clock can run as low as 400
kHz during initialization.
SDIO
SD2_CLK
25-50 MHz
Clock for SDIO devices
SD Card
SD3_CLK
25-50 MHz
Clock for SD card devices
SPI
PCU_SPI_CLK
20 MHz,
33 MHz,
50 MHz
Clock for SPI flash
PMIC/COMMS
PMC_SUSCLK[3:0]
32.768 kHz
Pass through clock from RTC oscillator
LPC
ILB_LPC_CLK[0:1]
33 MHz
Provided to devices requiring LPC
clock
clock
HDA
HDA_CLK
24 MHz
Serial clock for external HDA codec
device
device
PCI Express
PCIE_CLKN[3:0]
PCIE_CLKP[3:0]
PCIE_CLKP[3:0]
100 MHz
Differential Clocks supplied to
external PCI express devices based
on assertion of PCIE_CLKREQ[3:0]#
inputs
external PCI express devices based
on assertion of PCIE_CLKREQ[3:0]#
inputs
USB PHY
USB_ULPI_REFCLK
19.2 MHz
Clock for USB devices
HDMI
DDI[1:0]_TXP/N[3] 25-148.5 MHz
Differential clock for HDMI devices
HDMI DDC
DDI[1:0]_DDCCLK
100 kHz
Clock for HDMI DDC devices