mcf51ac256a Freescale Semiconductor, Inc, mcf51ac256a Datasheet - Page 124

• Manufacturer Part Number: mcf51ac256a
• Description: Mcf51ac Flexis
• Manufacturer: Freescale Semiconductor, Inc

Parallel Input/Output Control
6.5.7.3
6.5.7.4
6.5.7.5
6-20
Reset:
Reset:
Reset:
PTGPEn
PTGSEn
Field
Field
6–0
6–0
W
W
W
R
R
R
Internal Pull Enable for Port G Bits — Each of these control bits determines if the internal pullup device is
enabled for the associated PTG pin. For port G pins that are configured as outputs, these bits have no effect and
the internal pull devices are disabled.
0 Internal pullup device disabled for port G bit n.
1 Internal pullup device enabled for port G bit n.
Output Slew Rate Enable for Port G Bits — Each of these control bits determines if the output slew rate control
is enabled for the associated PTG pin. For port G pins that are configured as inputs, these bits have no effect.
0 Output slew rate control disabled for port G bit n.
1 Output slew rate control enabled for port G bit n.
Port G Pull Enable Register (PTGPE)
0
0
Port G Slew Rate Enable Register (PTGSE)
0
0
Port G Drive Strength Selection Register (PTGDS)
0
0
7
7
7
MCF51AC256 ColdFire Integrated Microcontroller Reference Manual, Rev. 5
Figure 6-36. Drive Strength Selection for Port G Register (PTGDS)
PTGPE6
PTGSE6
PTGDS6
Figure 6-34. Internal Pull Enable for Port G Register (PTGPE)
Figure 6-35. Slew Rate Enable for Port G Register (PTGSE)
0
0
0
6
6
6
Table 6-33. PTGPE Register Field Descriptions
Table 6-34. PTGSE Register Field Descriptions
PTGPE5
PTGSE5
PTGDS5
0
0
0
5
5
5
PTGPE4
PTGSE4
PTGDS4
0
0
0
4
4
4
Description
Description
PTGDS3
PTGPE3
PTGSE3
3
0
3
0
3
0
PTGDS2
PTGPE2
PTGSE2
0
0
0
2
2
2
PTGDS1
PTGPE1
PTGSE1
Freescale Semiconductor
0
0
0
1
1
1
PTGPE0
PTGSE0
PTGDS0
0
0
0
0
0
0