sc9s12hy64j0vllr Freescale Semiconductor, Inc, sc9s12hy64j0vllr Datasheet - Page 100

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

1
1
Port Integration Module (S12HYPIMV1)
2.3.42
2.3.43
100
Address 0x0263
Address 0x0264
Read: Anytime.
Write: Anytime.
Read: Anytime.
Write: Anytime.
RDRH
PERH
Field
Field
Reset
Reset
7-0
7-0
W
W
R
R
Port H reduced drive—Select reduced drive for outputs
This register configures the drive strength of output pins 7 through 0 as either full or reduced. If a pin is used as input
this bit has no effect.
1 Reduced drive selected (1/6 of the full drive strength).
0 Full drive strength enabled.
Port H pull device enable—Enable pull devices on input pins
These bits configure whether a pull device is activated, if the associated pin is used as an input. This bit has no effect
if the pin is used as an output. Out of reset all pull device is enabled.
1 Pull device enabled.
0 Pull device disabled.
RDRH7
PERH7
Port H Reduced Drive Register (RDRH)
Port H Pull Device Enable Register (PERH)
0
1
7
7
RDRH6
PERH6
Figure 2-41. Port H Pull Device Enable Register (PERH)
0
1
6
6
Figure 2-40. Port H Reduced Drive Register (RDRH)
MC9S12HY/HA-Family Reference Manual, Rev. 1.04
Table 2-39. RDRH Register Field Descriptions
Table 2-40. PERH Register Field Descriptions
RDRH5
PERH5
0
1
5
5
RDRH4
PERH4
0
1
4
4
Description
Description
RDRH3
PERH3
3
0
3
1
RDRH2
PERH2
0
1
2
2
Freescale Semiconductor
RDRH1
PERH1
Access: User read/write
Access: User read/write
0
1
1
1
RDRH0
PERH0
0
1
0
0
1
1