參數(shù)資料
型號(hào)： DM164134
廠商： Microchip Technology
文件頁數(shù)： 30/116頁
文件大?。?/td> 0K
描述： KIT DEV PIC18F4XK22
標(biāo)準(zhǔn)包裝： 1
系列： PIC® 18F
類型： MCU
適用于相關(guān)產(chǎn)品： PIC18F4XK22，PIC18F2XK22
所含物品： 板，文檔
2009 Microchip Technology Inc.
Preliminary
DS41364D-page 281
PIC16F193X/LF193X
23.6.13.3
Bus Collision During a Stop
Condition
Bus collision occurs during a Stop condition if:
a)
After the SDA pin has been deasserted and
allowed to float high, SDA is sampled low after
the BRG has timed out.
b)
After the SCL pin is deasserted, SCL is sampled
low before SDA goes high.
The Stop condition begins with SDA asserted low.
When SDA is sampled low, the SCL pin is allowed to
float. When the pin is sampled high (clock arbitration),
the Baud Rate Generator is loaded with SSPADD and
counts down to 0. After the BRG times out, SDA is
sampled. If SDA is sampled low, a bus collision has
occurred. This is due to another master attempting to
drive a data ‘0’ (Figure 23-37). If the SCL pin is sampled
low before SDA is allowed to float high, a bus collision
occurs. This is another case of another master
attempting to drive a data ‘0’ (Figure 23-38).
FIGURE 23-38:
BUS COLLISION DURING A STOP CONDITION (CASE 1)
FIGURE 23-39:
BUS COLLISION DURING A STOP CONDITION (CASE 2)
SDA
SCL
BCLIF
PEN
P
SSPIF
TBRG
SDA asserted low
SDA sampled
low after TBRG,
set BCLIF
’0’
SDA
SCL
BCLIF
PEN
P
SSPIF
TBRG
Assert SDA
SCL goes low before SDA goes high,
set BCLIF
’0’
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參數(shù)描述
DM164135 制造商:Microchip Technology Inc 功能描述:KIT, ONEPIC DEMO BOARD, PLUS PICKIT 3 制造商:Microchip Technology Inc 功能描述:KIT, ONEPIC DEMO BOARD, PLUS PICKIT 3; SVHC:No SVHC (19-Dec-2012) ;RoHS Compliant: Yes 制造商:Microchip Technology Inc 功能描述:One PIC MCU Platform Board with PICkit 3
DM164135 制造商:Microchip Technology Inc 功能描述:PICKIT 3 IN-CIRCUIT DEBUGGER
DM173001 功能描述:開發(fā)板和工具包 - PIC / DSPIC PICDEM 17 PIC17CXX RoHS:否 制造商:Microchip Technology 產(chǎn)品:Starter Kits 工具用于評(píng)估:chipKIT 核心:Uno32 接口類型: 工作電源電壓:
DM180021 功能描述:開發(fā)板和工具包 - PIC / DSPIC PIC18 Starter Kit RoHS:否 制造商:Microchip Technology 產(chǎn)品:Starter Kits 工具用于評(píng)估:chipKIT 核心:Uno32 接口類型: 工作電源電壓:
DM1800-434MB 功能描述:射頻模塊 DM1800 Base Station 433.92 MHz RoHS:否 制造商:Linx Technologies 產(chǎn)品:Transceiver Modules 頻帶:902 MHz to 928 MHz 輸出功率:- 15.5 dBm to + 12.5 dBm 接口類型:UART 工作電源電壓:- 0.3 VDC to + 5.5 VDC 傳輸供電電流:38.1 mA 接收供電電流:22.7 mA 天線連接器類型:U.FL 最大工作溫度:+ 85 C 尺寸:1.15 mm x 0.63 mm x 0.131 mm
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