MC9S08RD32CPE Freescale Semiconductor, MC9S08RD32CPE Datasheet - Page 81

• Manufacturer Part Number: MC9S08RD32CPE
• Description: IC MCU 32K FLASH 2K RAM 28-DIP
• Manufacturer: Freescale Semiconductor
• Series: HCS08r

Specifications of MC9S08RD32CPE

• Core Processor: HCS08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 23
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

6.6.3
Port C pins used as general-purpose I/O pins are controlled by the port C data (PTCD), data direction
(PTCDD), and pullup enable (PTCPE) registers.
Freescale Semiconductor
PTCPE[7:0]
PTCD[7:0]
Field
Field
7:0
7:0
Reset
Reset
W
W
R
R
Port C Registers (PTCD, PTCPE, and PTCDD)
Port C Data Register Bits — For port C pins that are inputs, reads return the logic level on the pin. For port C
pins that are configured as outputs, reads return the last value written to this register.
Writes are latched into all bits of this register. For port C pins that are configured as outputs, the logic level is
driven out the corresponding MCU pin.
Reset forces PTCD to all 0s, but these 0s are not driven out the corresponding pins because reset also
configures all port pins as high-impedance inputs with pullups disabled.
Pullup Enable for Port C Bits — For port C pins that are inputs, these read/write control bits determine whether
internal pullup devices are enabled. For port C pins that are configured as outputs, these bits are ignored and
the internal pullup devices are disabled.
0 Internal pullup device disabled.
1 Internal pullup device enabled.
PTCPE7
PTCD7
0
0
7
7
PTCPE6
PTCD6
6
0
6
0
Figure 6-13. Pullup Enable for Port C (PTCPE)
Figure 6-12. Port C Data Register (PTCD)
MC9S08RC/RD/RE/RG Data Sheet, Rev. 1.11
Table 6-8. PTCPE Field Descriptions
Table 6-7. PTCD Field Descriptions
PTCPE5
PTCD5
0
0
5
5
PTCPE4
PTCD4
4
0
4
0
Description
Description
PTCPE3
PTCD3
0
0
3
3
PTCPE2
PTCD2
2
0
2
0
PTCPE1
PTCD1
0
0
1
1
Parallel Input/Output
PTCPE0
PTCD0
0
0
0
0
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