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PM0222 Fiches technique(PDF) 14 Page - STMicroelectronics

No de pièce PM0222
Description  Brain smart hub family
PDF  33 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

PM0222 Fiches technique(HTML) 14 Page - STMicroelectronics

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GPIO / IOs management
PM0222
14/33
DocID025476 Rev 1
5.2
Pull activation
Each I/O has a pull-up or a pull-down (fixed). This pull-up/down can be enabled or disabled
through the GPIO_PE register (1 bit per I/O). The reset value for this register is 0x3F,
meaning the pull (up or down) is enabled for all I/Os after reset. Table 6 indicates the
direction of each I/O.
5.3
Shared I/Os at chip level (double bonding)
For I²C peripherals there is a double bonding configuration through the I2C_CONF register,
see Section 10.4: I2C double bonding.
Table 6. IO pull direction
Pad reference
Pull
IO0
Down
IO1
Down
IO2
Up
IO3
Down
IO4
Down
IO5
Down
IO6
Down
IO7
Up
IO8
Up
IO9
Up
IO10
Down



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