S912XEG128J2VAL
Model | S912XEG128J2VAL |
Description | IC,MICROCONTROLLER,16-BIT,CPU12 CPU,CMOS,QFP,112PIN,PLASTIC |
PDF file | Total 1327 pages (File size: 7M) |
Chip Manufacturer | ROCHESTER |
Chapter 2 Port Integration Module (S12XEP100PIMV1)
2.3.26
Port T Polarity Select Register (PPST)
Because of an order from the United States International Trade Commission, BGA-packaged product lines and part numbers indicated here currently are not
available from Freescale for import or sale in the United States prior to September 2010: S12XE products in 208 MAPBGA packages
Access: User read/write
(1)
6
5
4
3
2
1
0
Address 0x0245
7
R
PPST7
W
Reset
0
0
0
0
0
0
0
0
PPST6
PPST5
PPST4
PPST3
PPST2
PPST1
PPST0
Figure 2-24. Port T Polarity Select Register (PPST)
1. Read: Anytime.
Write: Anytime.
Table 2-25. PPST Register Field Descriptions
Field
7-0
PPST
Description
Port T pull device select—Determine
pull device polarity on input pins
This register selects whether a pull-down or a pull-up device is connected to the pin.
1 A pull-down device is connected to the associated pin, if enabled and if the pin is used as input.
0 A pull-up device is connected to the associated pin, if enabled and if the pin is used as input.
2.3.27
PIM Reserved Register
Access: User read
(1)
6
5
4
3
2
1
0
Address 0x0246
7
R
W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
= Unimplemented or Reserved
Figure 2-25. PIM Reserved Register
1. Read: Always reads 0x00
Write: Unimplemented
2.3.28
PIM Reserved Register
Access: User read
(1)
6
5
4
3
2
1
0
Address 0x0247
7
R
W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
= Unimplemented or Reserved
Figure 2-26. PIM Reserved Register
1. Read: Always reads 0x00
Write: Unimplemented
MC9S12XE-Family Reference Manual , Rev. 1.19
124
Freescale Semiconductor