MC9S08RD32CPE Freescale Semiconductor, MC9S08RD32CPE Datasheet - Page 84

• 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: -

Parallel Input/Output
6.6.5
Port E pins used as general-purpose I/O pins are controlled by the port E data (PTED), data direction
(PTEDD), and pullup enable (PTEPE) registers.
84
PTED[7:0]
PTED[7:0]
Field
Field
7:0
7:0
Reset
Reset
W
W
R
R
Port E Registers (PTED, PTEPE, and PTEDD)
Port E Data Register Bits — For port E pins that are inputs, reads return the logic level on the pin. For port E
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 E pins that are configured as outputs, the logic level is
driven out the corresponding MCU pin.
Reset forces PTED 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 E Bits — For port E pins that are inputs, these read/write control bits determine whether
internal pullup devices are enabled. For port E 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.
PTEPE7
PTED7
0
0
7
7
PTEPE6
PTED6
6
0
6
0
Figure 6-19. Pullup Enable for Port E (PTED)
Figure 6-18. Port E Data Register (PTED)
MC9S08RC/RD/RE/RG Data Sheet, Rev. 1.11
Table 6-13. PTED Field Descriptions
Table 6-14. PTED Field Descriptions
PTEPE5
PTED5
0
0
5
5
PTEPE4
PTED4
4
0
4
0
Description
Description
PTEPE3
PTED3
0
0
3
3
PTEPE2
PTED2
2
0
2
0
PTEPE1
Freescale Semiconductor
PTED1
0
0
1
1
PTEPE0
PTED0
0
0
0
0