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STMPE1801 数据表(PDF) 17 Page - STMicroelectronics

部件名 STMPE1801
功能描述  Xpander Logic™ 18-bit enhanced port expander with keypad controller
PDF  60 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STMPE1801 数据表(HTML) 17 Page - STMicroelectronics

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STMPE1801
I2C specification
Doc ID 17884 Rev 3
17/60
6.9
General call address
A general call address is a transaction with the slave address of 0x00 and R/W =0. When a
general call address is asserted, the STMPE1801 responds to this transaction with an
acknowledgement and behaves as a slave-receiver mode. The meaning of a general call
address is defined in the second byte sent by the master-transmitter.
Note:
All other second byte values are ignored.
Table 10.
General call address
R/W
Second byte
value
Definition
0
0x06
A 2-byte transaction in which the second byte tells the slave device to reset
and write (or latch in) the 2-bit programmable part of the slave address.
0
0x00
Not allowed as second byte.



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