MC68HC908JG16FA MOTOROLA [Motorola, Inc], MC68HC908JG16FA Datasheet - Page 266

• Manufacturer Part Number: MC68HC908JG16FA
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

Input/Output (I/O) Ports
14.6 Port D
14.6.1 Port D Data Register
Technical Data
266
NOTE:
Additional
Function:
Address:
Port D is an 4-bit general-purpose bidirectional I/O port. These pins are
open-drain when configured as output.
The port D data register contains a data latch for each of the four
port D pins.
Bits 5–4 of PTD are not available in the 32-pin low-profile quad flat pack.
PTD[5:0] — Port D Data Bits
Reset:
Read:
Write:
These read/write bits are software programmable. Data direction of
each port D pin is under control of the corresponding bit in data
direction register D. Reset has no effect on port D data.
The LED direct drive bit, PTDLDD, in the port option control register
(POCR) controls the drive options for PTD5–PTD2 pins. The infrared
LED drive bit, PTDILDD, in the POCR controls the drive options for
PTD1–PTD0 pins. (See
Freescale Semiconductor, Inc.
For More Information On This Product,
$0003
Bit 7
0
Go to: www.freescale.com
Figure 14-11. Port D Data Register (PTD)
Input/Output (I/O) Ports
6
0
10mA
PTD5
sink
5
14.8 Port
Unaffected by reset
10mA
PTD4
sink
4
Options.)
10mA
PTD3
sink
3
MC68HC908JG16
10mA
PTD2
sink
2
25mA
PTD1
sink
1
MOTOROLA
—
Rev. 1.0
25mA
PTD0
Bit 0
sink