參數(shù)資料
型號: MTA81010S-XTI/SO
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 4 MHz, RISC MICROCONTROLLER, PDSO28
封裝: 0.300 INCH, SOIC-28
文件頁數(shù): 59/76頁
文件大?。?/td> 745K
代理商: MTA81010S-XTI/SO
MTA81010
DS39005D-page 62
1995 Microchip Technology Inc.
19.6
Slave Address
The chip address of the internal 24LC01B in the
MTA81010 is hardwire configured with a device
address of XXX.
After generating a START, the bus master transmits the
slave address consisting of a 4-bit control code (1010)
for the 24LC01B, followed by three don't care bits.
The eighth bit of slave address determines if the master
device wants to read or write
to the 24LC01B
(Figure 19-2).
The 24LC01B monitors the bus for its corresponding
control code all the time. It generates an acknowledge
bit if the control code was true and it is not in a
programming mode.
External devices (e.g.,
Serial EEPROMs) with the
same control code as the internal 24LC01B must not
be connected to the same serial bus or a conflict will
occur. Devices with different control codes may be
connected to the serial bus without risk of conflict.
FIGURE 19-2: CONTROL BYTE
ALLOCATION
Operation Control Code
Chip Select
R/W
Read
1010
XXX
1
Write
1010
XXX
0
1X
X
0
1
0
SLAVE ADDRESS
START
READ/WRITE
A
R/W
X = don’t care
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