MC68HC08AZ60ACFU MOTOROLA [Motorola, Inc], MC68HC08AZ60ACFU Datasheet - Page 340
MC68HC08AZ60ACFU
Manufacturer Part Number
MC68HC08AZ60ACFU
Description
Microcontrollers
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.MC68HC08AZ60ACFU.pdf
(480 pages)
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I/O Ports
20.10 Port H
20.10.1 Port H Data Register (PTH)
Advance Information
340
PTH $000B
Alternate Function
Port H is a 2-bit special function port that shares all of its pins with the
Keyboard Interrupt Module (KBD).
The port H data register contains a data latch for each of the two port H
pins.
PTH[1:0] — Port H Data Bits
KBD[4:3] — Keyboard Wakeup Pins
Reset:
Read:
Write:
These read/write bits are software-programmable. Data direction of
each port H pin is under the control of the corresponding bit in data
direction register H. Reset has no effect on port G data.
The keyboard interrupt enable bits, KBIE[4:3], in the keyboard
interrupt control register (KBICR), enable the port H pins as external
interrupt pins. See
Figure 20-22. Port H Data Register (PTH)
Bit 7
0
= Unimplemented
0
6
I/O Ports
Keyboard Module
5
0
Unaffected by reset
4
0
(KBD).
3
0
MC68HC08AZ60A — Rev 0.0
2
0
KBD4
PTH1
1
MOTOROLA
KBD3
PTH0
Bit 0
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