參數(shù)資料
型號(hào): PIC16F1527T-I/MR
廠商: Microchip Technology
文件頁(yè)數(shù): 47/94頁(yè)
文件大?。?/td> 0K
描述: MCU 28KB FLASH 1536B RAM 64-QFN
標(biāo)準(zhǔn)包裝: 3,300
系列: PIC® XLP™ 16F
核心處理器: PIC
芯體尺寸: 8-位
速度: 20MHz
連通性: I²C,LIN,SPI,UART/USART
外圍設(shè)備: 欠壓檢測(cè)/復(fù)位,POR,PWM,WDT
輸入/輸出數(shù): 54
程序存儲(chǔ)器容量: 28KB(16K x 14)
程序存儲(chǔ)器類型: 閃存
RAM 容量: 1.5K x 8
電壓 - 電源 (Vcc/Vdd): 2.3 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 30x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 64-VFQFN 裸露焊盤(pán)
包裝: 帶卷 (TR)
212
7810C–AVR–10/12
Atmel ATmega328P [Preliminary]
Arbitration will continue until only one Master remains, and this may take many bits. If several
masters are trying to address the same Slave, arbitration will continue into the data packet.
Figure 21-8. Arbitration Between Two Masters
Note that arbitration is not allowed between:
A REPEATED START condition and a data bit.
A STOP condition and a data bit.
A REPEATED START and a STOP condition.
It is the user software’s responsibility to ensure that these illegal arbitration conditions never
occur. This implies that in multi-master systems, all data transfers must use the same composi-
tion of SLA+R/W and data packets. In other words: All transmissions must contain the same
number of data packets, otherwise the result of the arbitration is undefined.
SDA from
Master A
SDA from
Master B
SDA Line
Synchronized
SCL Line
START
Master A Loses
Arbitration, SDA
A
SDA
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