MC68HC908AP16CFA MOTOROLA [Motorola, Inc], MC68HC908AP16CFA Datasheet - Page 375

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

MC68HC908AP Family — Rev. 2.5
MOTOROLA
When DDRCx is a logic 1, reading address $0002 reads the PTCx data
latch. When DDRCx is a logic 0, 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.
Table 18-4
Notes:
DDRC
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,
READ DDRC ($0006)
WRITE DDRC ($0006)
WRITE PTC ($0002)
READ PTC ($0002)
PTC
X
Bit
summarizes the operation of the port C pins.
X
(1)
Go to: www.freescale.com
I/O Pin Mode
Table 18-4. Port C Pin Functions
Input, Hi-Z
Figure 18-11. Port C I/O Circuit
RESET
Output
(2)
Accesses to DDRC
DDRCx
PTCx
Read/Write
DDRC[7:0]
DDRC[7:0]
PTC[7:0]
Input/Output (I/O) Ports
Read
Accesses to PTC
# PTC0 has schmitt trigger input.
Pin
PTC[7:0]
PTC[7:0]
Data Sheet
Write
(3)
Port C
PTCx
375
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