MC9S08GB60A Datasheet, PDF (92/302 Pages) Freescale Semiconductor, Inc – HCS08 Microcontrollers

Chapter 6 Parallel Input/Output
R
W
Reset
7
PTBSE7
0
6
PTBSE6
5
PTBSE5
4
PTBSE4
3
PTBSE3
2
PTBSE2
0
0
0
0
0
Figure 6-15. Data Direction for Port A (PTBSE)
1
PTBSE1
0
0
PTBSE0
0
Table 6-7. PTBSE Field Descriptions
Field
Description
7:0
PTBSE[7:0]
Slew Rate Control Enable for Port B Bits — For port B pins that are outputs, these read/write control bits
determine whether the slew rate controlled outputs are enabled. For port B pins that are configured as inputs,
these bits are ignored.
0 Slew rate control disabled.
1 Slew rate control enabled.
R
W
Reset
7
PTBDD7
0
6
PTBDD6
5
PTBDD5
4
PTBDD4
3
PTBDD3
2
PTBDD2
0
0
0
0
0
Figure 6-16. Data Direction for Port B (PTBDD)
1
PTBDD1
0
0
PTBDD0
0
Table 6-8. PTBDD Field Descriptions
Field
Description
7:0
Data Direction for Port B Bits — These read/write bits control the direction of port B pins and what is read for
PTBDD[7:0] PTBD reads.
0 Input (output driver disabled) and reads return the pin value.
1 Output driver enabled for port B bit n and PTBD reads return the contents of PTBDn.
MC9S08GB60A Data Sheet, Rev. 2
92
Freescale Semiconductor