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Freescale Semiconductor MCF52211 Manual Do Utilizador

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General Purpose I/O Module
MCF52211 ColdFire® Integrated Microcontroller Reference Manual, Rev. 2
13-6
Freescale Semiconductor
 
Setting any bit in a DDRn register configures the corresponding port n pin as an output. Clearing any bit 
in a DDRn register configures the corresponding pin as an input.
IPSBAR
Offsets:
0x10_002C (DDRDD)
0x10_0022 (DDRAN)
Access: User read/write
7
6
5
4
3
2
1
0
R
DDRn7
DDRn6
DDRn5
DDRn4
DDRn3
DDRn2
DDRn1
DDRn0
W
Reset:
0
0
0
0
0
0
0
0
Figure 13-7. Port Data Direction Registers with Bits 7:0 Implemented (DDRDD, DDRAN)
IPSBAR
Offsets:
0x10_0026 (DDRTA)
0x10_0027 (DDRTC)
0x10_0028 (DDRTD)
0x10_0029 (DDRUA)
0x10_002A (DDRUB)
0x10_002B (DDRUC)
Access: User read/write
7
6
5
4
3
2
1
0
R
0
0
0
0
DDRn3
DDRn2
DDRn1
DDRn0
W
Reset:
0
0
0
0
0
0
0
0
Figure 13-8. Port Data Direction Registers with Bits 3:0 Implemented (DDRTA, DDRTC, DDRTD, DDRUA, 
DDRUB, DDRUC)
IPSBAR
Offset: 0x10_0024 (DDRQS)
Access: User read/write
7
6
5
4
3
2
1
0
R
0
DDRn6
DDRn5
DDRn4
DDRn3
DDRn2
DDRn1
DDRn0
W
Reset:
0
0
0
0
0
0
0
0
Figure 13-9. Port QS Data Direction Register (DDRQS)
IPSBAR
Offset: 0x10_0020 (DDRNQ)
Access: User read/write
7
6
5
4
3
2
1
0
R
DDRn7
DDRn6
DDRn5
DDRn4
DDRn3
DDRn2
DDRn1
0
W
Reset:
0
0
0
0
0
0
0
0
Figure 13-10. Port NQ Data Direction Register (DDRNQ)