MC68HC908AP16CFA MOTOROLA [Motorola, Inc], MC68HC908AP16CFA Datasheet - Page 376

• Manufacturer Part Number: MC68HC908AP16CFA
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

Input/Output (I/O) Ports
18.5 Port D
18.5.1 Port D Data Register (PTD)
Data Sheet
376
Alternative Function:
Address:
Port D is an 8-bit special function port that shares all of its pins with the
keyboard interrupt module.
The port D data register contains a data latch for each of the eight port D
pins.
PTD[7:0] — Port D Data Bits
KBI7–KBI0 — Keyboard Interrupt Inputs
Reset:
Read:
Write:
Freescale Semiconductor, Inc.
These read/write bits are software programmable. Data direction of
each port D pin is under the control of the corresponding bit in data
direction register D. Reset has no effect on port D data.
The keyboard interrupt enable bits, KBIE[7:0], in the keyboard
interrupt enable register (KBIER), enable the port D pins as external
interrupt pins. See
For More Information On This Product,
$0003
PTD7
KBI7
Bit 7
Figure 18-12. Port D Data Register (PTD)
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PTD6
KBI6
6
Section 20. Keyboard Interrupt Module
PTD5
KBI5
5
Unaffected by reset
PTD4
KBI4
4
PTD3
KBI3
MC68HC908AP Family — Rev. 2.5
3
PTD2
KBI2
2
PTD1
KBI1
1
MOTOROLA
(KBI).
PTD0
KBI0
Bit 0