mc68hc908jb16 Freescale Semiconductor, Inc, mc68hc908jb16 Datasheet - Page 272

• Manufacturer Part Number: mc68hc908jb16
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Input/Output (I/O) Ports
14.5 Port D
14.5.1 Port D Data Register
Technical Data
272
NOTE:
Additional
Function:
Address:
Port D is an 6-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 six
port D pins.
Bits 5–1 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
$0003
Bit 7
0
Figure 14-8. Port D Data Register (PTD)
Input/Output (I/O) Ports
6
0
10mA
PTD5
sink
5
14.7 Port
Unaffected by reset
10mA
PTD4
sink
4
Options.)
10mA
PTD3
sink
3
MC68HC908JB16
10mA
PTD2
sink
Freescale Semiconductor
2
25mA
PTD1
sink
1
—
Rev. 1.1
25mA
PTD0
Bit 0
sink