MC9S12P64VQK Freescale Semiconductor, MC9S12P64VQK Datasheet - Page 79

• Manufacturer Part Number: MC9S12P64VQK
• Description: 16-bit Microcontrollers - MCU 16 BIT 64K FLASH
• Manufacturer: Freescale Semiconductor

Specifications of MC9S12P64VQK

• Rohs: yes
• Core: S12
• Processor Series: MC9S12P
• Data Bus Width: 16 bit
• Maximum Clock Frequency: 64 MHz
• Program Memory Size: 64 KB
• Data Ram Size: 4 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 5 V
• Operating Temperature Range: - 40 C to 105 C
• Package / Case: QFP-80
• Mounting Style: SMD/SMT
• Interface Type: I2C, SCI, SPI
• Program Memory Type: Flash

1. Read: Anytime
1. Read: Anytime
2.3.27
2.3.28
Freescale Semiconductor
Address 0x024B
Address 0x024C
Write: Anytime
Write: Anytime
RDRS
PERS
Field
Field
Reset
Reset
3-0
3-0
W
W
R
R
Port S reduced drive—Select reduced drive for output pin
This bit configures the drive strength of the associated output pin as either full or reduced. If a pin is used as input
this bit has no effect. The reduced drive function is independent of which function is being used on a particular pin.
1 Reduced drive selected (approx. 1/5 of the full drive strength)
0 Full drive strength enabled
Port S pull device enable—Enable pull device on input pin or wired-or output pin
This bit controls whether a pull device on the associated port input pin is active. If a pin is used as output this bit has
only effect if used in wired-or mode. The polarity is selected by the related polarity select register bit.
1 Pull device enabled
0 Pull device disabled
Port S Reduced Drive Register (RDRS)
Port S Pull Device Enable Register (PERS)
0
0
0
0
7
7
Figure 2-26. Port S Pull Device Enable Register (PERS)
0
0
0
0
6
6
Figure 2-25. Port S Reduced Drive Register (RDRS)
Table 2-24. RDRS Register Field Descriptions
Table 2-25. PERS Register Field Descriptions
S12P-Family Reference Manual, Rev. 1.13
5
0
0
5
0
0
0
0
0
0
4
4
Description
Description
RDRS3
PERS3
0
1
3
3
RDRS2
PERS2
0
1
2
2
Port Integration Module (S12PPIMV1)
Access: User read/write
Access: User read/write
RDRS1
PERS1
0
1
1
1
RDRS0
PERS0
0
1
0
0
79
(1)
(1)