sc9s12hy64j0vllr Freescale Semiconductor, Inc, sc9s12hy64j0vllr Datasheet - Page 88

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

1
Port Integration Module (S12HYPIMV1)
2.3.25
88
Address 0x024B
Read: Anytime.
Write: Anytime.
DDRS
DDRS
DDRS
DDRS
Field
Reset
3
2
1
0
W
R
Port S data direction—
This register controls the data direction of pin 3.This register configures pin as either input or output.
If CAN is enabled, it will force the pin as output.
1 Associated pin is configured as output.
0 Associated pin is configured as input.
Port S data direction—
This register controls the data direction of pin 2.This register configures pin as either input or output.
If CAN is enabled, it will force the pin as input.
1 Associated pin is configured as output.
0 Associated pin is configured as input.
Port S data direction—
This register controls the data direction of pin 1.This register configures pin as either input or output.
If SCI is enabled, it will force the pin as output
Else if PWM7 is routing to PS1 and use as PWM channel output, it will force pin as output. If use as PWM emergency
shut down, it will force pin as input.
1 Associated pin is configured as output.
0 Associated pin is configured as input.
Port S data direction—
This register controls the data direction of pin 0.This register configures pin as either input or output.
If SCI is enabled, it will force the pin as input
Else if PWM6 is routing to PS0 and PWM6 is enabled, it will force pin as output.
1 Associated pin is configured as output.
0 Associated pin is configured as input.
RDRS7
Port S Reduced Drive Register (RDRS)
0
7
Due to internal synchronization circuits, it can take up to 2 bus clock cycles
until the correct value is read on PTS or PTIS registers, when changing the
DDRS register.
RDRS6
Table 2-21. DDRS Register Field Descriptions (continued)
0
6
Figure 2-23. Port S Reduced Drive Register (RDRS)
MC9S12HY/HA-Family Reference Manual, Rev. 1.04
RDRS5
0
5
RDRS4
NOTE
0
4
Description
RDRS3
3
0
RDRS2
0
2
Freescale Semiconductor
RDRS1
Access: User read/write
0
1
RDRS0
0
0
1