MC68HC705V12CFN MOTOROLA [Motorola, Inc], MC68HC705V12CFN Datasheet - Page 86
MC68HC705V12CFN
Manufacturer Part Number
MC68HC705V12CFN
Description
The Motorola microcontroller
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.MC68HC705V12CFN.pdf
(248 pages)
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Parallel Input/Output (I/O)
7.6 Port D
Advance Information
86
INTERNAL HC05
DATA BUS
READ $0003/2B
Port D is a 5-bit input-only port which shares all of its pins with the A/D
converter (AD0–AD4) as shown in
(PORTD) is located at address $0003. When the A/D converter is active,
one of these five input ports may be selected by the A/D multiplexer for
conversion. A logical read of a selected input port will always return 0.
TO A/D CHANNEL SELECT LOGIC
TO A/D SAMPLING CIRCUITRY
Figure 7-4. Port D Circuitry
V
SS
Parallel Input/Output (I/O)
Figure
7-4. The port D data register
MC68HC705V12
INPUT
PIN
MOTOROLA
—
Rev. 3.0
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