mc68hc08az60 Freescale Semiconductor, Inc, mc68hc08az60 Datasheet - Page 288

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

I/O Ports
MC68HC08AZ60 — Rev 1.0
288
When bit DDRCx is a logic 1, reading address $0002 reads the PTCx
data latch. When bit 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.
operation of the port C pins.
X = don’t care
Hi-Z = high impedance
1. Writing affects data register, but does not affect input.
Freescale Semiconductor, Inc.
Value
Bit
For More Information On This Product,
0
1
0
1
READ DDRC ($0006)
WRITE DDRC ($0006)
WRITE PTC ($0002)
READ PTC ($0002)
Go to: www.freescale.com
PTC
Bit
X
X
2
2
Table 3. Port C Pin Functions
I/O Ports
RESET
Figure 10. Port C I/O Circuit
Input, Hi-Z
Input, Hi-Z
I/O Pin
Output
Output
Mode
DDRCx
PTCx
Read/Write
DDRC[5:0]
DDRC[5:0]
Accesses
to DDRC
DDRC[2]
DDRC[2]
Table 3
PTC[5:0]
Read
Accesses to PTC
Pin
Pin
0
summarizes the
PTC[5:0]
MOTOROLA
PTC[5:0]
Write
PTC2
—
10-ioports
PTCx
(1)