mc9s08jm60 Freescale Semiconductor, Inc, mc9s08jm60 Datasheet - Page 87

• Manufacturer Part Number: mc9s08jm60
• Description: Hcs08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Freescale Semiconductor
PTBDS[7:0]
PTBPE[7:0]
PTBSE[7:0]
Reset
Reset
Reset
Field
Field
Field
7:0
7:0
7:0
W
W
W
R
R
R
PTBPE7
PTBSE7
PTBDS7
Internal Pullup Enable for Port B Bits — Each of these control bits determines if the internal pullup device is
enabled for the associated PTB pin. For port B pins that are configured as outputs, these bits have no effect and
the internal pullup devices are disabled.
0 Internal pullup device disabled for port B bit n.
1 Internal pullup device enabled for port B bit n.
Output Slew Rate Control Enable for Port B Bits— Each of these control bits determine whether output slew
rate control is enabled for the associated PTB pin. For port B pins that are configured as inputs, these bits have
no effect.
0 Output slew rate control disabled for port B bit n.
1 Output slew rate control enabled for port B bit n.
Output Drive Strength Selection for Port B Bits — Each of these control bits selects between low and high
output drive for the associated PTB pin.
0 Low output drive enabled for port B bit n.
1 High output drive enabled for port B bit n.
0
1
7
7
7
0
Figure 6-11. Output Drive Strength Selection for Port B (PTBDS)
PTBPE6
PTBSE6
PTBDS6
Figure 6-10. Output Slew Rate Control Enable (PTBSE)
0
1
0
6
6
6
Figure 6-9. Internal Pullup Enable for Port B (PTBPE)
Table 6-10. PTBDS Register Field Descriptions
Table 6-8. PTBPE Register Field Descriptions
Table 6-9. PTBSE Register Field Descriptions
PTBPE5
PTBSE5
PTBDS5
MC9S08JM60 Series Data Sheet, Rev. 2
0
1
0
5
5
5
PTBDS4
PTBPE4
PTBSE4
0
1
0
4
4
4
Description
Description
Description
PTBDS3
PTBPE3
PTBSE3
3
0
3
1
3
0
PTBDS2
PTBPE2
PTBSE2
0
1
2
2
2
0
Chapter 6 Parallel Input/Output
PTBPE1
PTBSE1
PTBDS1
0
1
1
1
1
0
PTBPE0
PTBSE0
PTBDS0
0
1
0
0
0
0
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