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參數(shù)資料
| 型號(hào)： | KSZ8863MLL-EVAL |
| 廠商： | Micrel Inc |
| 文件頁(yè)數(shù)： | 76/106頁(yè) |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION FOR KSZ8863MLL |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 主要目的： | 接口，以太網(wǎng) PHY |
| 嵌入式： | 否 |
| 已用 IC / 零件： | KSZ8863MLL |
| 已供物品： | 板 |
| 相關(guān)產(chǎn)品： | 576-3751-ND - IC ETHERNET SWITCH 3PORT 48-LQFP 576-3577-ND - IC ETHERNET SW 3PORT 48-LQFP |
| 其它名稱： | 576-3867 |
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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
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
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| KSZ8863MLLI | 功能描述:以太網(wǎng) IC 3-Port Copper 10/100 Ethernet Switch w/ 1x MII Interface (Industrial Grade) RoHS:否 制造商:Micrel 產(chǎn)品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據(jù)速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray |
| KSZ8863RLL | 功能描述:以太網(wǎng) IC 3-Port Copper 10/100 Ethernet Switch with 1x RMII Interface (Lead Free) RoHS:否 制造商:Micrel 產(chǎn)品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據(jù)速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray |
| KSZ8863RLL-EVAL | 功能描述:以太網(wǎng)開發(fā)工具 3-Port Copper 10/100 Ethernet Switch with 1x RMII Interface - Evaluation Board RoHS:否 制造商:Micrel 產(chǎn)品:Evaluation Boards 類型:Ethernet Transceivers 工具用于評(píng)估:KSZ8873RLL 接口類型:RMII 工作電源電壓: |
| KSZ8863RLLI | 功能描述:以太網(wǎng) IC 3-Port Copper 10/100 Ethernet Switch w/ 1x RMII Interface (Industrial Grade) RoHS:否 制造商:Micrel 產(chǎn)品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據(jù)速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray |
| KSZ8864CNXCA | 功能描述:Ethernet Controller 10/100 Base-T/TX PHY MII, RMII Interface 64-QFN (8x8) 制造商:microchip technology 系列:- 包裝:托盤 零件狀態(tài):有效 協(xié)議:以太網(wǎng) 功能:控制器 接口:MII，RMII 標(biāo)準(zhǔn):10/100 Base-T/TX PHY 電壓 - 電源:1.8V，2.5V，3.3V 電流 - 電源:- 工作溫度:0°C ~ 70°C 封裝/外殼:64-VFQFN 裸露焊盤 供應(yīng)商器件封裝:64-QFN（8x8） 標(biāo)準(zhǔn)包裝:348 |
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