Freescale Semiconductor Demonstration Board for Freescale MC9S12XHY256 Microcontroller DEMO9S12XHY256 DEMO9S12XHY256 用户手册
产品代码
DEMO9S12XHY256
Port Integration Module (S12XHYPIMV1)
MC9S12XHY-Family Reference Manual, Rev. 1.04
Freescale Semiconductor
123
2.3.56
Port AD Data Register (PT0AD)
2.3.57
Port AD Data Register (PT1AD)
Address 0x0270
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
0
0
0
0
PT0AD3
PT0AD2
PT0AD1
PT0AD0
W
Altern.
Function
--
--
--
--
AN11
AN10
AN9
AN8
Reset
0
0
0
0
0
0
0
0
Figure 2-53. Port AD Data Register (PT0AD)
Table 2-46. PT0AD Register Field Descriptions
Field
Description
3-0
PT0AD
Port AD general purpose input/output data—Data Register, ATD AN analog input
When not used with the alternative function, the associated pin can be used as general purpose I/O. In general
purpose output mode the register bit value is driven to the pin.
If the associated data direction bit is set to 1, a read returns the value of the port register bit, otherwise the buffered
pin input state is read.
When not used with the alternative function, the associated pin can be used as general purpose I/O. In general
purpose output mode the register bit value is driven to the pin.
If the associated data direction bit is set to 1, a read returns the value of the port register bit, otherwise the buffered
pin input state is read.
Address 0x0271
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
PT1AD7
PT1AD6
PT1AD5
PT1AD4
PT1AD3
PT1AD2
PT1AD1
PT1AD0
W
KWAD7
KWAD6
KWAD5
KWAD4
KWAD3
KWAD2
KWAD1
KWAD0
Altern.
Function
AN7
AN6
AN5
AN4
AN3
AN2
AN1
AN0
Reset
0
0
0
0
0
0
0
0
Figure 2-54. Port AD Data Register (PT1AD)