MC68HC908GR8CP Freescale Semiconductor, MC68HC908GR8CP Datasheet - Page 217

• Manufacturer Part Number: MC68HC908GR8CP
• Description: IC MCU FLASH 8BIT 8MHZ 4K 28-DIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908GR8CP

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 17
• Program Memory Size: 7.5KB (7.5K x 8)
• Program Memory Type: FLASH
• Ram Size: 384 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 6x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

16.5.2 Data Direction Register C
MC68HC908GR8 — Rev 4.0
MOTOROLA
NOTE:
NOTE:
Address:
Data direction register C (DDRC) determines whether each port C pin is
an input or an output. Writing a logic 1 to a DDRC bit enables the output
buffer for the corresponding port C pin; a logic 0 disables the output
buffer.
DDRC1–DDRC0 — Data Direction Register C Bits
Avoid glitches on port C pins by writing to the port C data register before
changing data direction register C bits from 0 to 1.
Figure 16-11
For those devices packaged in a 28-pin DIP and SOIC package, PTC1,0
are not connected. Set DDRC1,0 to a 1 to configure PTC1,0 as outputs.
Reset:
Read:
Write:
Freescale Semiconductor, Inc.
These read/write bits control port C data direction. Reset clears
DDRC1–DDRC0, configuring all port C pins as inputs.
For More Information On This Product,
1 = Corresponding port C pin configured as output
0 = Corresponding port C pin configured as input
$0006
Bit 7
Figure 16-10. Data Direction Register C (DDRC)
0
0
Go to: www.freescale.com
shows the port C I/O logic.
Input/Output Ports (I/O)
= Unimplemented
6
0
0
5
0
0
4
0
0
3
0
0
2
0
0
Input/Output Ports (I/O)
DDRC1
1
0
Technical Data
DDRC0
Bit 0
Port C
0
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