参数资料
型号: KSZ8851-16MQL
厂商: Micrel Inc
文件页数: 32/88页
文件大小: 0K
描述: IC CTLR MAC/PHY NON-PCI 128-PQFP
产品培训模块: KSZ8851 10/100 Embedded Controllers
标准包装: 66
控制器类型: 以太网控制器,MAC/PHY
接口: 总线
电源电压: 1.8V,2.5V,3.3V
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 128-BFQFP
供应商设备封装: 128-PQFP(14x20)
包装: 托盘
产品目录页面: 1081 (CN2011-ZH PDF)
配用: 576-3292-ND - BOARD EVALUATION KSZ8851-16MLL
其它名称: 576-3253
2009 Microchip Technology Inc.
DS39682E-page 37
PIC18F45J10 FAMILY
4.2.3
RC_RUN MODE
In RC_RUN mode, the CPU and peripherals are
clocked from the internal oscillator; the primary clock is
shut down. This mode provides the best power conser-
vation of all the Run modes, while still executing code.
It works well for user applications which are not highly
timing-sensitive or do not require high-speed clocks at
all times.
This mode is entered by setting SCS<1:0> to ‘11’.
When the clock source is switched to the INTRC (see
Figure 4-2), the primary oscillator is shut down and the
OSTS bit is cleared.
On transitions from RC_RUN mode to PRI_RUN mode,
the device continues to be clocked from the INTRC
while the primary clock is started. When the primary
clock becomes ready, a clock switch to the primary
clock occurs (see Figure 4-3). When the clock switch is
complete, the OSTS bit is set and the primary clock is
providing the device clock. The IDLEN and SCS bits
are not affected by the switch. The INTRC source will
continue to run if either the WDT or the Fail-Safe Clock
Monitor is enabled.
FIGURE 4-2:
TRANSITION TIMING TO RC_RUN MODE
FIGURE 4-3:
TRANSITION TIMING FROM RC_RUN MODE TO PRI_RUN MODE
Q4
Q3
Q2
OSC1
Peripheral
Program
Q1
INTRC
Q1
Counter
Clock
CPU
Clock
PC + 2
PC
123
n-1
n
Clock Transition
Q4
Q3
Q2
Q1
Q3
Q2
PC + 4
Q1
Q3 Q4
OSC1
Peripheral
Program
PC
INTRC
Q1
PC + 4
Q2
Q3
Q4
Q1
CPU Clock
PC + 2
Clock
Counter
Q2
Q3
Note 1:
TOST = 1024 TOSC. These intervals are not shown to scale.
SCS<1:0> bits Changed
OSTS bit Set
TOST(1)
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KSZ8851-16MQL-EVAL 功能描述:以太网开发工具 Single Ethernet Port + Generic (16-bit) Bus Interface(Lead Free) Eval Board RoHS:否 制造商:Micrel 产品:Evaluation Boards 类型:Ethernet Transceivers 工具用于评估:KSZ8873RLL 接口类型:RMII 工作电源电压:
KSZ8851-16MQLI 功能描述:以太网 IC Single Ethernet Port + Generic (16-bit) Bus Interface(Lead Free, I-Temp) RoHS:否 制造商:Micrel 产品:Ethernet Switches 收发器数量:2 数据速率:10 Mb/s, 100 Mb/s 电源电压-最大:1.25 V, 3.45 V 电源电压-最小:1.15 V, 3.15 V 最大工作温度:+ 85 C 封装 / 箱体:QFN-64 封装:Tray
KSZ8851-32MQL 功能描述:以太网 IC 10/100BT Ethernet MAC + PHY with Generic (32-bit) Bus Interface, Lead Free RoHS:否 制造商:Micrel 产品:Ethernet Switches 收发器数量:2 数据速率:10 Mb/s, 100 Mb/s 电源电压-最大:1.25 V, 3.45 V 电源电压-最小:1.15 V, 3.15 V 最大工作温度:+ 85 C 封装 / 箱体:QFN-64 封装:Tray
KSZ8851-32MQLI 功能描述:以太网 IC 10/100BT Ethernet MAC + PHY with Generic (32-bit) Bus Interface (I-Temp) RoHS:否 制造商:Micrel 产品:Ethernet Switches 收发器数量:2 数据速率:10 Mb/s, 100 Mb/s 电源电压-最大:1.25 V, 3.45 V 电源电压-最小:1.15 V, 3.15 V 最大工作温度:+ 85 C 封装 / 箱体:QFN-64 封装:Tray
KSZ8851MLL 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:Single Port MAC/PHY Controller with Non PCI Interface