sc9s12hy64j0vllr Freescale Semiconductor, Inc, sc9s12hy64j0vllr Datasheet - Page 75

• Manufacturer Part Number: sc9s12hy64j0vllr
• Description: S12 Microcontrollers Mcu 16-bit Hcs12 Cisc 32kb Flash 5v Tray
• Manufacturer: Freescale Semiconductor, Inc

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2.3.9
Freescale Semiconductor
Address 0x000D (PRR)
BKPUE
PUPBE
PUPAE
Read: Anytime
Write: Anytime
Field
Reset
6
1
0
W
R
BKGD pin pull-up Enable—Enable pull-up device on pin
This bit configures whether a pull-up device is activated, if the pin is used as input. If a pin is used as output this bit
has no effect.
1 Pull-up device enabled
0 Pull-up device disabled
Port B Pull-down Enable—Enable pull-down devices on all port input pins
This bit configures whether a pull-down device is activated on all associated port input pins. If a pin is used as output
this bit has no effect.
1 pull-down device enabled
0 pull-down device disabled
Port A Pull-down Enable—Enable pull-down devices on all port input pins
This bit configures whether a pull-down device is activated on all associated port input pins. If a pin is used as output
this bit has no effect.
1 pull-down device enabled
0 pull-down device disabled
Ports A, B Reduced Drive Register (RDRIV)
0
0
7
= Unimplemented or Reserved
Figure 2-7. Ports ABEK Reduced Drive Register (RDRIV)
0
0
6
MC9S12HY/HA-Family Reference Manual, Rev. 1.04
Table 2-8. PUCR Register Field Descriptions
0
0
5
0
0
4
Description
3
0
0
Port Integration Module (S12HYPIMV1)
0
0
2
Access: User read/write
RDPB
0
1
RDPA
0
0
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