CP3-TB-BT26-0 National Semiconductor, CP3-TB-BT26-0 Datasheet - Page 73
CP3-TB-BT26-0
Manufacturer Part Number
CP3-TB-BT26-0
Description
BOARD TARGET FOR CP3BT26
Manufacturer
National Semiconductor
Type
Microcontrollerr
Datasheet
1.CP3-TB-BT26-0.pdf
(280 pages)
Specifications of CP3-TB-BT26-0
Contents
*
For Use With/related Products
CP3BT26
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
Q1879090A
- Current page: 73 of 280
- Download datasheet (5Mb)
14.2
OPEN-DRAIN OPERATION
A port pin can be configured to operate as an inverting
open-drain output buffer. To do this, the CPU must clear the
bit in the data output register (PxDOUT) and then use the
port direction register (PxDIR) to set the value of the port
pin. With the direction register bit set (direction = out), the
value zero is forced on the pin. With the direction register bit
clear (direction = in), the pin is placed in the TRI-STATE
mode. If desired, the internal weak pull-up can be enabled
to pull the signal high when the output buffer is in TRI-
STATE mode.
73
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