MC68HC908AP16CFA MOTOROLA [Motorola, Inc], MC68HC908AP16CFA Datasheet - Page 378

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

Input/Output (I/O) Ports
Data Sheet
378
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.
Table 18-5
Notes:
DDRD
1. X = don’t care.
2. Hi-Z = high impedance.
3. Writing affects data register, but does not affect input.
Freescale Semiconductor, Inc.
Bit
0
1
For More Information On This Product,
PTD
X
Bit
summarizes the operation of the port D pins.
X
(1)
Go to: www.freescale.com
I/O Pin Mode
Table 18-5. Port D Pin Functions
Input, Hi-Z
Output
(2)
Accesses to DDRD
Read/Write
DDRD[7:0]
DDRD[7:0]
MC68HC908AP Family — Rev. 2.5
PTD[7:0]
Read
Accesses to PTD
Pin
MOTOROLA
PTD[7:0]
PTD[7:0]
Write
(3)