MC68HC908JG16FA MOTOROLA [Motorola, Inc], MC68HC908JG16FA Datasheet - Page 272
MC68HC908JG16FA
Manufacturer Part Number
MC68HC908JG16FA
Description
Microcontrollers
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.MC68HC908JG16FA.pdf
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Input/Output (I/O) Ports
14.8 Port Options
Technical Data
272
When bit DDREx is a logic 1, reading address $0008 reads the PTEx
data latch. When bit DDREx is a logic 0, reading address $0008 reads
the voltage level on the pin. The data latch can always be written,
regardless of the state of its data direction bit.
the operation of the port E pins.
All pins of port A, port B, port C, and port E have programmable pullup
resistors. Port D has programmable LED drive capability; PTD5–PTD2
each have 10mA high current sink, and PTD1–PTD0 each have 25mA
high current sink.
Notes:
1. X = don’t care.
2. Hi-Z = high impedance.
3. Writing affects data register, but does not affect input.
Freescale Semiconductor, Inc.
DDRE
Bit
0
1
For More Information On This Product,
READ DDRE ($0009)
WRITE DDRE ($0009)
WRITE PTE ($0008)
READ PTE ($0008)
Go to: www.freescale.com
Input/Output (I/O) Ports
PTE
X
Bit
X
(1)
Table 14-6. Port E Pin Functions
Figure 14-16. Port E I/O Circuit
RESET
I/O Pin Mode
Input, Hi-Z
Output
(2)
DDREx
PTEx
Read/Write
DDRE[4:0]
DDRE[4:0]
Accesses
to DDRE
Table 14-4
MC68HC908JG16
PTE[4:0]
Read
Accesses to PTE
Pin
summarizes
PTE[4:0]
MOTOROLA
PTE[4:0]
—
Write
Rev. 1.0
PTEx
(3)
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