MC68HC908JG16FA MOTOROLA [Motorola, Inc], MC68HC908JG16FA Datasheet - Page 268

• Manufacturer Part Number: MC68HC908JG16FA
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

Input/Output (I/O) Ports
Technical Data
268
When bit DDRDx is a logic 1, reading address $0003 reads the PTDx
data latch. When bit DDRDx is a logic 0, reading address $0003 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 D pins.
Notes:
1. X = don’t care.
2. Hi-Z = high impedance.
3. Writing affects data register, but does not affect input.
DDRD
Freescale Semiconductor, Inc.
Bit
0
1
For More Information On This Product,
READ DDRD ($0007)
WRITE DDRD ($0007)
WRITE PTD ($0003)
READ PTD ($0003)
Go to: www.freescale.com
PTD Bit
Input/Output (I/O) Ports
X
X
(1)
Table 14-5. Port D Pin Functions
Figure 14-13. Port D I/O Circuit
RESET
I/O Pin Mode
Input, Hi-Z
Output
(2)
DDRDx
PTDx
Read/Write
DDRD[5:0]
DDRD[5:0]
Accesses
to DDRD
Table 14-5
MC68HC908JG16
PTD[5:0]
Read
Accesses to PTD
Pin
summarizes
PTD[5:0]
MOTOROLA
PTD[5:0]
—
Write
Rev. 1.0
PTDx
(3)