MC68HC08AZ60ACFU MOTOROLA [Motorola, Inc], MC68HC08AZ60ACFU Datasheet - Page 325

• Manufacturer Part Number: MC68HC08AZ60ACFU
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

MC68HC08AZ60A — Rev 0.0
MOTOROLA
1. X = don’t care
2. Hi-Z = high impedance
3. Writing affects data register, but does not affect input.
DDRC bit
0
1
0
1
Figure 20-9
When bit DDRCx is a logic one, reading address $0002 reads the PTCx
data latch. When bit DDRCx is a logic zero, reading address $0002
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 C pins.
PTC Bit
X
X
2
2
READ DDRC ($0006)
WRITE DDRC ($0006)
WRITE PTC ($0002)
READ PTC ($0002)
(1)
Table 20-4. Port C Pin Functions
shows the port C I/O logic.
I/O Pin Mode
Input, Hi-Z
Input, Hi-Z
Output
Output
Figure 20-9. Port C I/O Circuit
RESET
I/O Ports
(2)
Accesses to
Read/Write
DDRC[5:0]
DDRC[5:0]
DDRC[7]
DDRC[7]
DDRC
DDRCx
PTCx
.
Table 20-4
PTC[5:0]
Read
Pin
Pin
Accesses to PTC
0
Advance Information
summarizes
PTC[5:0]
PTC[5:0]
Write
PTC2
—
I/O Ports
Port C
PTCx
(3)
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