收藏本站
参数资料
型号： KSZ8863FLLI
厂商： Micrel Inc
文件页数： 76/106页
文件大小： 0K
描述： IC ETHERNET SWITCH 3PORT 48-LQFP
标准包装： 250
控制器类型： 以太网开关控制器
接口： MII
电源电压： 1.8V，2.5V，3.3V
工作温度： -40°C ~ 85°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： 托盘
配用： 576-3866-ND - BOARD EVALUATION FOR KSZ8863FLL
其它名称： 576-3750
PIC16C72 Series
DS39016A-page 70
Preliminary
1998 Microchip Technology Inc.
10.12
Watchdog Timer (WDT)
The Watchdog Timer is as a free running on-chip RC
oscillator which does not require any external compo-
nents. This RC oscillator is separate from the RC oscil-
lator of the OSC1/CLKIN pin. That means that the WDT
will run, even if the clock on the OSC1/CLKIN and
OSC2/CLKOUT pins of the device has been stopped,
for example, by execution of a SLEEP instruction.
During normal operation, a WDT time-out generates a
device RESET (Watchdog Timer Reset). If the device is
in SLEEP mode, a WDT time-out causes the device to
wake-up and continue with normal operation (Watch-
dog Timer Wake-up). The TO bit in the STATUS register
will be cleared upon a Watchdog Timer time-out.
The WDT can be permanently disabled by clearing
conguration bit WDTE (Section 10.1).
WDT time-out period values may be found in the Elec-
trical Specications section under parameter #31. Val-
ues for the WDT prescaler (actually a postscaler, but
shared with the Timer0 prescaler) may be assigned
using the OPTION_REG register.
.
FIGURE 10-12: WATCHDOG TIMER BLOCK DIAGRAM
FIGURE 10-13: SUMMARY OF WATCHDOG TIMER REGISTERS
Note:
The CLRWDT and SLEEP instructions clear
the WDT and the postscaler, if assigned to
the WDT, and prevent it from timing out
and generating a device RESET condition.
Note:
When a CLRWDT instruction is executed
and the prescaler is assigned to the WDT,
the prescaler count will be cleared, but the
prescaler assignment is not changed.
Address
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
2007h
Cong. bits
(1)
BODEN(1)
CP1
CP0
PWRTE(1)
WDTE
FOSC1
FOSC0
81h,181h
OPTION
RBPU
INTEDG
T0CS
T0SE
PSA
PS2
PS1
PS0
Legend: Shaded cells are not used by the Watchdog Timer.
Note 1: See Figure 10-1 for operation of these bits.
From TMR0 Clock Source
(Figure 4-2)
To TMR0 (Figure 4-2)
Postscaler
WDT Timer
WDT
Enable Bit
0
1
M
U
X
PSA
8 - to - 1 MUX
PS2:PS0
0
1
MUX
PSA
WDT
Time-out
Note: PSA and PS2:PS0 are bits in the OPTION register.
8
相关PDF资料
PDF描述
PIC16C505-04E/SL IC MCU OTP 1KX12 14SOIC
PIC16F676T-E/ST IC MCU FLASH 1KX14 W/AD 14TSSOP
PIC12LC509A-04I/MF IC MCU OTP 1KX12 LV 8DFN
PIC12LCE519-04/SM IC MCU OTP 1KX12 LV W/EE 8-SOIJ
PIC12CE518T-04I/SM IC MCU OTP 512X12 W/EE 8-SOIC
相关代理商/技术参数
参数描述
KSZ8863MLL 功能描述:以太网 IC 3-Port Copper 10/100 Ethernet Switch with 1x MII 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
KSZ8863MLL-EVAL 功能描述:以太网开发工具 3-Port Copper 10/100 Ethernet Switch with 1x MII Interface - Evaluation 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:
KSZ8863MLLI 功能描述:以太网 IC 3-Port Copper 10/100 Ethernet Switch w/ 1x MII Interface (Industrial 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
KSZ8863RLL 功能描述:以太网 IC 3-Port Copper 10/100 Ethernet Switch with 1x RMII 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
KSZ8863RLL-EVAL 功能描述:以太网开发工具 3-Port Copper 10/100 Ethernet Switch with 1x RMII Interface - Evaluation 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:
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

*
*
*