收藏本站
参数资料
型号： KSZ8851-16MLL TR
厂商： Micrel Inc
文件页数： 46/84页
文件大小： 0K
描述： IC MAC CTLR 1PORT W/BUS 48LQFP
产品培训模块： KSZ8851 10/100 Embedded Controllers
标准包装： 1,000
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： 48-LQFP
供应商设备封装： 48-LQFP（7x7）
包装： 带卷 (TR)
PIC16F7X
DS30325B-page 48
2002 Microchip Technology Inc.
6.1
Timer1 Operation in Timer Mode
Timer mode is selected by clearing the TMR1CS
(T1CON<1>) bit. In this mode, the input clock to the
timer is FOSC/4. The synchronize control bit T1SYNC
(T1CON<2>) has no effect, since the internal clock is
always in sync.
6.2
Timer1 Counter Operation
Timer1 may operate in Asynchronous or Synchronous
mode, depending on the setting of the TMR1CS bit.
When Timer1 is being incremented via an external
source, increments occur on a rising edge. After Timer1
is enabled in Counter mode, the module must first have
a falling edge before the counter begins to increment.
FIGURE 6-1:
TIMER1 INCREMENTING EDGE
6.3
Timer1 Operation in Synchronized
Counter Mode
Counter mode is selected by setting bit TMR1CS. In
this mode, the timer increments on every rising edge of
clock input on pin RC1/T1OSI/CCP2, when bit
T1OSCEN is set, or on pin RC0/T1OSO/T1CKI, when
bit T1OSCEN is cleared.
If T1SYNC is cleared, then the external clock input is
synchronized with internal phase clocks. The synchro-
nization is done after the prescaler stage. The pres-
caler stage is an asynchronous ripple counter.
In this configuration, during SLEEP mode, Timer1 will
not increment even if the external clock is present,
since the synchronization circuit is shut-off. The
prescaler, however, will continue to increment.
FIGURE 6-2:
TIMER1 BLOCK DIAGRAM
T1CKI
(Default high)
T1CKI
(Default low)
Note: Arrows indicate counter increments.
TMR1H
TMR1L
T1OSC
T1SYNC
TMR1CS
T1CKPS1:T1CKPS0
Q Clock
T1OSCEN
Enable
Oscillator(1)
FOSC/4
Internal
Clock
TMR1ON
On/Off
Prescaler
1, 2, 4, 8
Synchronize
det
1
0
1
Synchronized
Clock Input
2
RC0/T1OSO/T1CKI
RC1/T1OSI/CCP2(2)
Note
1: When the T1OSCEN bit is cleared, the inverter is turned off. This eliminates power drain.
2: For the PIC16F73/76, the Schmitt Trigger is not implemented in External Clock mode.
Set Flag bit
TMR1IF on
Overflow
TMR1
(2)
相关PDF资料
PDF描述
LTC4278CDKD#TRPBF IC PD IEEE 802.3AT 25.5W 32-DFN
V300A8C400BF CONVERTER MOD DC/DC 8V 400W
PIC16HV785T-I/ML IC PIC MCU FLASH 2KX14 20QFN
V300A8C400BL3 CONVERTER MOD DC/DC 8V 400W
PIC16HV785-I/P IC PIC MCU FLASH 2KX14 20DIP
相关代理商/技术参数
参数描述
KSZ8851-16MLLU 功能描述:以太网 IC Single-Port Ethernet Controller (Automotive Grade) 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
KSZ8851-16MLLU TR 功能描述:以太网 IC Single-Port Ethernet Controller (Automotive Grade) 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
KSZ8851-16MQL 功能描述:以太网 IC Single Ethernet Port + Generic (16-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
KSZ8851-16MQL-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
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*