lm8322 National Semiconductor Corporation, lm8322 Datasheet - Page 31

• Manufacturer Part Number: lm8322
• Description: Mobile I/o Companion Supporting Key-scan, I/o Expansion, Pwm, And Access.bus Host Interface
• Manufacturer: National Semiconductor Corporation

17.5 WRITE_PULL_DOWN COMMAND
The WRITE_PORT_SEL command consists of a command
byte (0x84) and two data bytes from the host. The data bytes
configure the pullup/pulldown device (if enabled) for the cor-
17.6 WRITE_PORT_SEL COMMAND
The WRITE_PORT_SEL command consists of a command
byte (0x85) and two data bytes from the host. The data bytes
configure the corresponding general-purpose I/O ports as in-
The GPIO_09 port pin can only be configured as an input with
weak pullup/pulldown device.
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1
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1
GPIO_xx
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GPIO_xx
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Bit
Bit
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Value
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Value
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0
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GPIO port pin is an input.
GPIO port pin is an output.
GPIO port pin pullup/pulldown device is a pullup.
GPIO port pin pullup/pulldown device is a pulldown.
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3
responding general-purpose I/O ports as pullups (0) or pull-
downs (1). The first data byte controls ports GPIO_15 through
GPIO_08, and the second byte controls ports GPIO_07
through GPIO_00.
3
puts (0) or outputs (1). The first data byte controls ports
GPIO_15 through GPIO_08, and the second byte controls
ports GPIO_07 through GPIO_00.
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2
1
0
Description
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Description
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