Freescale Semiconductor MC9S12G128 Evaluation Board TWR-S12G128-KIT TWR-S12G128-KIT データシート
製品コード
TWR-S12G128-KIT
Port Integration Module (S12GPIMV1)
MC9S12G Family Reference Manual, Rev.1.23
Freescale Semiconductor
241
2.4.3.53
Port AD Data Direction Register (DDR0AD)
2.4.3.54
Port AD Data Direction Register (DDR1AD)
Table 2-78. PTI1AD Register Field Descriptions
Field
Description
7-0
PTI1AD
Port AD input data—
A read always returns the buffered input state of the associated pin. It can be used to detect overload or short circuit
conditions on output pins.
A read always returns the buffered input state of the associated pin. It can be used to detect overload or short circuit
conditions on output pins.
Address 0x0274 (
,
)
Access: User read/write
1
1
Read: Anytime
Write: Anytime
Write: Anytime
7
6
5
4
3
2
1
0
R
DDR0AD7
DDR0AD6
DDR0AD5
DDR0AD4
DDR0AD3
DDR0AD2
DDR0AD1
DDR0AD0
W
Reset
0
0
0
0
0
0
0
0
Address 0x0274 (
)
Access: User read/write
7
6
5
4
3
2
1
0
R
0
0
0
0
DDR0AD3
DDR0AD2
DDR0AD1
DDR0AD0
W
Reset
0
0
0
0
0
0
0
0
Figure 2-53. Port AD Data Direction Register (DDR0AD)
Table 2-79. DDR0AD Register Field Descriptions
Field
Description
7-0
DDR0AD
Port AD data direction—
This bit determines whether the associated pin is an input or output.
This bit determines whether the associated pin is an input or output.
1 Associated pin configured as output
0 Associated pin configured as input
0 Associated pin configured as input
Address 0x0275
Access: User read/write
1
1
Read: Anytime
Write: Anytime
Write: Anytime
7
6
5
4
3
2
1
0
R
DDR1AD7
DDR1AD6
DDR1AD5
DDR1AD4
DDR1AD3
DDR1AD2
DDR1AD1
DDR1AD0
W
Reset
0
0
0
0
0
0
0
0
Figure 2-54. Port AD Data Direction Register (DDR1AD)