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MC68HC11PH8 Datasheet, PDF (79/264 Pages) Motorola, Inc – High-density Complementary Metal Oxide Semiconductor (HCMOS) Microcomputer Unit | |||
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4
PARALLEL INPUT/OUTPUT
4
The MC68HC11PH8 has up to 54 input/output lines and 8 input-only lines, depending on the
operating mode. To enhance the I/O functions, the data bus of this microcontroller is
non-multiplexed. The following table is a summary of the conï¬guration and features of each port.
Table 4-1 Port conï¬guration
Port
Input
pins
A
Ã
B
Ã
C
Ã
D
Ã
E
8
F
Ã
G
Ã
H
Ã
Output
pins
Ã
Ã
Ã
Ã
Ã
Ã
Ã
Ã
Bidirectional
pins
Alternate functions
8
Timer
8
High order address and LCD segment drivers
8
Data bus
6
SPI1 and SCI1
Ã
A/D converter
8
Low order address
8
R/W on PG7, LCDBP on PG6, SPI2 and SCI2 (with MI bus)
8
PWM and modulus timer clock inputs, keyboard interrupt
Note:
Do not confuse pin function with the electrical state of that pin at reset. All
general-purpose I/O pins that are conï¬gured as inputs at reset are in a high-impedance
state and the contents of the port data registers are undeï¬ned; in port descriptions, a
âuâ indicates this condition. The pin function is mode dependent.
MC68HC11PH8
PARALLEL INPUT/OUTPUT
TPG
MOTOROLA
4-1
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