参数资料
型号: AT89C51ID2-SLRUM
厂商: Atmel
文件页数: 151/157页
文件大小: 0K
描述: IC 8051 MCU 64K FLASH 44-PLCC
产品培训模块: MCU Product Line Introduction
标准包装: 500
系列: 89C
核心处理器: 8051
芯体尺寸: 8-位
速度: 60MHz
连通性: I²C,SPI,UART/USART
外围设备: POR,PWM,WDT
输入/输出数: 34
程序存储器容量: 64KB(64K x 8)
程序存储器类型: 闪存
EEPROM 大小: 2K x 8
RAM 容量: 2K x 8
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 5.5 V
振荡器型: 外部
工作温度: -40°C ~ 85°C
封装/外壳: 44-LCC(J 形引线)
包装: 标准包装
其它名称: AT89C51ID2-SLRUMDKR
93
AT89C51ID2
4289C–8051–11/05
Figure 35. Format and State in the Slave Transmitter Mode
SSLA
R
A
Data
A
Data
P or S
A
A8h
B8h
C0h
P or S
A
C8h
All 1’s
A
B0h
Data
A
n
From master to slave
From slave to master
Any number of data bytes and their associated
acknowledge bits
This number (contained in SSCS) corresponds
to a defined state of the 2-wire bus
Reception of the
own slave address
and one or more
data bytes
Arbitration lost as master
and addressed as slave
Last data byte transmitted.
Switched to not addressed
slave (AA=0)
Table 69. Status in Slave Transmitter Mode
Status
Code
(SSCS)
Status of the 2-wire bus and
2-wire hardware
Application Software Response
Next Action Taken By 2-wire Software
To/from SSDAT
To SSCON
STA
STO
SI
AA
A8h
Own SLA+R has been
received; ACK has been
returned
Load data byte or
Load data byte
X
0
1
Last data byte will be transmitted and NOT ACK
will be received
Data byte will be transmitted and ACK will be
received
B0h
Arbitration lost in SLA+R/W as
master; own SLA+R has been
received; ACK has been
returned
Load data byte or
Load data byte
X
0
1
Last data byte will be transmitted and NOT ACK
will be received
Data byte will be transmitted and ACK will be
received
B8h
Data byte in SSDAT has been
transmitted; NOT ACK has
been received
Load data byte or
Load data byte
X
0
1
Last data byte will be transmitted and NOT ACK
will be received
Data byte will be transmitted and ACK will be
received
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