LFDAS12XSCT Freescale Semiconductor, LFDAS12XSCT Datasheet - Page 76
LFDAS12XSCT
Manufacturer Part Number
LFDAS12XSCT
Description
HARDWARE MC9S12XS 48-PIN
Manufacturer
Freescale Semiconductor
Datasheet
1.LFDAS12XSCT.pdf
(738 pages)
Specifications of LFDAS12XSCT
Module/board Type
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
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1
1
Port Integration Module (S12XSPIMV1)
2.3.5
2.3.6
76
Address 0x0002 (PRR)
Address 0x0003 (PRR)
Read: Anytime. The data source depends on the data direction value.
Write: Anytime.
Read: Anytime. The data source depends on the data direction value.
Write: Anytime.
DDRA
DDRB
Field
Field
Reset
Reset
7-0
7-0
W
W
R
R
Port A Data Direction—
This bit determines whether the associated pin is an input or output.
1 Associated pin configured as output
0 Associated pin configured as input
Port B Data Direction—
This bit determines whether the associated pin is an input or output.
1 Associated pin configured as output
0 Associated pin configured as input
DDRA7
DDRB7
Port A Data Direction Register (DDRA)
Port B Data Direction Register (DDRB)
0
0
7
7
DDRA6
DDRB6
0
0
6
6
Figure 2-3. Port A Data Direction Register (DDRA)
Figure 2-4. Port B Data Direction Register (DDRB)
Table 2-6. DDRA Register Field Descriptions
Table 2-7. DDRB Register Field Descriptions
S12XS Family Reference Manual, Rev. 1.11
DDRA5
DDRB5
0
0
5
5
DDRA4
DDRB4
0
0
4
4
Description
Description
DDRA3
DDRB3
3
0
3
0
DDRA2
DDRB2
0
0
2
2
Freescale Semiconductor
DDRA1
DDRB1
Access: User read/write
Access: User read/write
0
0
1
1
DDRA0
DDRB0
0
0
0
0
1
1
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