MC68HC908AZ32ACFU MOTOROLA [Motorola, Inc], MC68HC908AZ32ACFU Datasheet - Page 375

• Manufacturer Part Number: MC68HC908AZ32ACFU
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

23.6 Port D
23.6.1 Port D Data Register
68HC908AZ32A — Rev 0.0
MOTOROLA
Functions:
Alternate
Address:
Port D is an 8-bit general-purpose I/O port. Note that PTD7 is only
available on 64-pin package options.
Port D is a 8-bit special function port that shares seven of its pins with
the analog to digital converter and two with the timer interface
modules.
PTD[7:0] — Port D Data Bits
ATD[14:8] — ADC Channel Status Bits
PTD6/ATD14/TACLK–PTD0/ATD8 are seven of the 15 analog-to-
digital converter channels. The ADC channel select bits, CH[4:0],
determine whether the PTD6/ATD14/TACLK–PTD0/ATD8 pins are
ADC channels or general-purpose I/O pins. If an ADC channel is
selected and a read of this corresponding bit in the port B data register
occurs, the data will be 0 if the data direction for this bit is
programmed as an input. Otherwise, the data will reflect the value in
the data latch. (See
15)).
Reset:
Read:
Write:
Freescale Semiconductor, Inc.
PTD[7:0] are read/write, software programmable bits. Data direction
of PTD[7:0] pins are under the control of the corresponding bit in data
direction register D.
For More Information On This Product,
$0003
PTD7
Bit 7
R
Go to: www.freescale.com
Figure 23-11. Port D Data Register (PTD)
ATD14/
TACLK
PTD6
6
I/O Ports
Section 21. Analog-To-Digital Converter (ADC-
ATD13
PTD5
5
Unaffected by Reset
ATD12/
TBCLK
PTD4
4
ATD11
PTD3
3
ATD10
PTD2
2
Advance Information
PTD1
ATD9
1
I/O Ports
PTD0
ATD8
Bit 0
Port D
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