mc68hc705v12 Freescale Semiconductor, Inc, mc68hc705v12 Datasheet - Page 86
mc68hc705v12
Manufacturer Part Number
mc68hc705v12
Description
M68hc05-based Mcu Hc05 Freescale Semiconductor
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC705V12.pdf
(248 pages)
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Parallel Input/Output (I/O)
7.6 Port D
Advance Information
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.
Freescale Semiconductor, Inc.
For More Information On This Product,
TO A/D CHANNEL SELECT LOGIC
TO A/D SAMPLING CIRCUITRY
Figure 7-4. Port D Circuitry
V
SS
Go to: www.freescale.com
Parallel Input/Output (I/O)
Figure
7-4. The port D data register
MC68HC705V12
INPUT
PIN
—
Rev. 3.0
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