参数资料
型号: MPC8308-KIT
厂商: Freescale Semiconductor
文件页数: 69/83页
文件大小: 0K
描述: KIT EVALUATION FOR MPC830X
标准包装: 1
系列: PowerQUICC II™ PRO
类型: MPU
适用于相关产品: MPC8308
所含物品: 板,线缆,CD,电源
MPC8308 PowerQUICC II Pro Processor Hardware Specification, Rev. 3
Freescale Semiconductor
71
Clocking
21 Clocking
This figure shows the internal distribution of clocks within the device.
1 Multiplication factor M = 1, 1.5, 2, 2.5, and 3. Value is decided by RCWLR[COREPLL].
2 Multiplication factor L = 2, 3, 4, 5 and 6. Value is decided by RCWLR[SPMF].
Figure 53. MPC8308 Clock Subsystem
The following external clock sources are utilized on the MPC8308:
System clock (SYS_CLK_IN)
Ethernet Clock (TSEC1_RX_CLK/TSEC1_TX_CLK/TSEC1_GTX_CLK125 for eTSEC)
SerDes PHY clock
eSHDC clock (SD_CLK)
For more information, see the SerDes chapter in the MPC8308 PowerQUICC II Pro Processor
Reference Manual.
All clock inputs can be supplied using an external canned oscillator, a clock generation chip, or some other
source that provides a standard CMOS square wave input.
PCI Express
e300 Core
System
PLL
e300
PLL
Clk
Gen
125/100 MHz
PLL
fb
ref
SYS_CLK_IN
PCVTR Mux
Protocol
Converter
SerDes PHY
+
-
24–66 MHz
SD_REF_CLK_B
SD_REF_CLK
MPC8308
eTSEC1
TSEC1_RX_CLK
TSEC1_TX_CLK/
TSEC1_GTX_CLK125
DDR
Clock
/2
Divider
/n
csb_clk
LBC
Clock
Divider
clk tree
MCK[0:2]
DDR
Memory
Device
Local
Bus
Memory
Device
ddr_clk
lbc_clk
x M1
x L2
eSHDC
SD_CLK
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MPC8308-NSG 制造商:Freescale Semiconductor 功能描述:MPC8308-NSG*NIC*
MPC8308-RDB 功能描述:开发板和工具包 - 其他处理器 Refer. Board MPC8308 RoHS:否 制造商:Freescale Semiconductor 产品:Development Systems 工具用于评估:P3041 核心:e500mc 接口类型:I2C, SPI, USB 工作电源电压:
MPC8308-RDB-PROMO 制造商:Freescale 功能描述:Motherboards MPC8308 PowerQuicc II DDR2 10Mbps/100Mbps/1000Mbps Linux Kernel
MPC8308-SOM 功能描述:开发板和工具包 - 其他处理器 For MPC8308 Ethernet USB 32bit RoHS:否 制造商:Freescale Semiconductor 产品:Development Systems 工具用于评估:P3041 核心:e500mc 接口类型:I2C, SPI, USB 工作电源电压: