MC9S12G FREESCALE [Freescale Semiconductor, Inc], MC9S12G Datasheet - Page 180

• Manufacturer Part Number: MC9S12G
• Description: Ignores external trigger. Performs one conversion sequence and stops.
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

1
1
Port Integration Module (S12GPIMV0)
2.4.3.23
2.4.3.24
180
Address 0x024C
Address 0x024D
Read: Anytime
Write: Anytime
Read: Anytime
Write: Anytime
DDRS
PERS
Field
Field
Reset
Reset
7-0
7-0
This document is valid for the S12G96 and the S12G128 device. All information related to other devices is preliminary.
W
W
R
R
Port S data direction—
This bit determines whether the associated pin is a general-purpose input or output.
1 Associated pin configured as output
0 Associated pin configured as input
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. The polarity is selected by the related
polarity select register bit. If a pin is used as output this bit has only effect if used in wired-or mode with a pullup
device.
1 Pull device enabled
0 Pull device disabled
PERS7
PPSS7
Port S Pull Device Enable Register (PERS)
1
Port S Polarity Select Register (PPSS)
0
7
7
PERS6
PPSS6
Figure 2-24. Port S Pull Device Enable Register (PERS)
1
0
6
6
Figure 2-25. Port S Polarity Select Register (PPSS)
Table 2-42. DDRS Register Field Descriptions
Table 2-43. PERS Register Field Descriptions
MC9S12G Family Reference Manual,
PERS5
PPSS5
1
0
5
5
PERS4
PPSS4
1
0
4
4
Description
Description
PERS3
PPSS3
1
0
3
3
Rev.1.01
PERS2
PPSS2
2
1
2
0
Freescale Semiconductor
PERS1
PPSS1
Access: User read/write
Access: User read/write
1
0
1
1
PERS0
PPSS0
1
0
0
0
1
1