Техническая Спецификация для Freescale Semiconductor Tower System Eval Kit for MC9S12GN32 TWR-S12GN32-KIT TWR-S12GN32-KIT
Модели
TWR-S12GN32-KIT
Port Integration Module (S12GPIMV1)
MC9S12G Family Reference Manual,
Rev.1.23
218
Freescale Semiconductor
2.4.3.19
Port T Polarity Select Register (PPST)
2.4.3.20
Port S Data Register (PTS)
Address 0x0245 (
,
)
Access: User read/write
1
1
Read: Anytime
Write: Anytime
Write: Anytime
7
6
5
4
3
2
1
0
R
PPST7
PPST6
PPST5
PPST4
PPST3
PPST2
PPST1
PPST0
W
Reset
0
0
0
0
0
0
0
0
Address 0x0245 (
)
Access: User read/write
7
6
5
4
3
2
1
0
R
0
0
PPST5
PPST4
PPST3
PPST2
PPST1
PPST0
W
Reset
0
0
0
0
0
0
0
0
Figure 2-20. Port T Polarity Select Register (PPST)
Table 2-39. PPST Register Field Descriptions
Field
Description
7-0
PPST
Port T pull device select—Configure pull device polarity on input pin
This bit selects a pullup or a pulldown device if enabled on the associated port input pin.
This bit selects a pullup or a pulldown device if enabled on the associated port input pin.
1 Pulldown device selected
0 Pullup device selected
0 Pullup device selected
Address 0x0248
Access: User read/write
1
1
Read: Anytime. The data source is depending on the data direction value.
Write: Anytime
Write: Anytime
7
6
5
4
3
2
1
0
R
PTS7
PTS6
PTS5
PTS4
PTS3
PTS2
PTS1
PTS0
W
0
0
0
0
0
0
0
0
Figure 2-21. Port S Data Register (PTS)