mc68hc08az60 Freescale Semiconductor, Inc, mc68hc08az60 Datasheet - Page 289

• Manufacturer Part Number: mc68hc08az60
• Description: M68hc08 Family Of 8-bit Microcontroller Units Mcus
• Manufacturer: Freescale Semiconductor, Inc

Port D
Port D Data
Register
11-ioports
MOTOROLA
Functions:
Address:
Alternate
Port D is an 8-bit general-purpose I/O port.
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
395).
Data direction register D (DDRD) does not affect the data direction of
port D pins that are being used by the TIMA or TIMB. However, the
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 11. Port D Data Register (PTD)
ATD14/
TACLK
PTD6
6
I/O Ports
Analog-to-Digital Converter (ADC-15)
ATD13
PTD5
5
Unaffected by Reset
ATD12/
TBCLK
PTD4
4
ATD11
PTD3
3
MC68HC08AZ60 — Rev 1.0
ATD10
PTD2
2
PTD1
ATD9
1
on page
I/O Ports
PTD0
ATD8
Bit 0
Port D
289