MC68HC05P1ADW FREESCALE [Freescale Semiconductor, Inc], MC68HC05P1ADW Datasheet - Page 58

• Manufacturer Part Number: MC68HC05P1ADW
• Description: General Release Specification
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Input/Output Ports
7.5 Port C
General Release Specification
INTERNAL HC05
DATA BUS
WRITE $0006
WRITE $0002
READ $0006
READ $0002
RESET
(RST)
Port C is an 8-bit bidirectional port that does not share any of its pins with
other subsystems. The port C data register is located at address $0002,
and its data direction register (DDR) is located at address $0006. Reset
does not affect the data registers but clears the DDRs, thereby setting
all of the port pins to input mode. Writing a 1 to a DDR bit sets the
corresponding port pin to output mode (see
pins, PC0 and PC1, can source and sink a higher current than a typical
I/O pin. See
specifications.
Freescale Semiconductor, Inc.
For More Information On This Product,
Figure 7-3. Port C I/O Circuitry
REGISTER BIT
REGISTER BIT
DIRECTION
DATA
DATA
Go to: www.freescale.com
Section 10. Electrical Specifications
Input/Output Ports
Figure
OUTPUT
MC68HC05P1A
7-3). Two port C
regarding current
CAPABILITY, PC0
HIGH CURRENT
AND PC1 ONLY
—
PIN
I/O
Rev. 3.0