mc68hc08az60 Freescale Semiconductor, Inc, mc68hc08az60 Datasheet - Page 291

• Manufacturer Part Number: mc68hc08az60
• Description: M68hc08 Family Of 8-bit Microcontroller Units Mcus
• Manufacturer: Freescale Semiconductor, Inc

13-ioports
MOTOROLA
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.
operation of the port D pins.
X = don’t care
Hi-Z = high impedance
1. 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)
PTD
Bit
X
X
Go to: www.freescale.com
Input, Hi-Z
I/O Pin
Output
Mode
Table 4. Port D Pin Functions
I/O Ports
RESET
Figure 13. Port D I/O Circuit
Accesses to
Read/Write
DDRD[7:0]
DDRD[7:0]
DDRD
DDRDx
PTDx
PTD[7:0]
Table 4
Read
MC68HC08AZ60 — Rev 1.0
Pin
Accesses to PTD
summarizes the
PTD[7:0]
PTD[7:0]
Write
I/O Ports
Port D
(1)
PTDx
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