mc9s08gt16a Freescale Semiconductor, Inc, mc9s08gt16a Datasheet - Page 90

• Manufacturer Part Number: mc9s08gt16a
• Description: Hcs08 Microcontrollers 8-bit Microcontroller Family
• Manufacturer: Freescale Semiconductor, Inc

Parallel Input/Output
90
PTBDD[7:0]
PTBSE[7:0]
Reset
Reset
Field
Field
7:0
7:0
W
W
R
R
PTBSE7
PTBDD7
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.
Data Direction for Port B Bits — These read/write bits control the direction of port B pins and what is read for
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.
0
0
7
7
PTBDD6
PTBSE6
0
0
6
6
Figure 6-15. Data Direction for Port B (PTBDD)
Figure 6-14. Data Direction for Port A (PTBSE)
Table 6-8. PTBDD Field Descriptions
Table 6-7. PTBSE Field Descriptions
PTBDD5
MC9S08GT16A/GT8A Data Sheet, Rev. 1
PTBSE5
0
0
5
5
PTBDD4
PTBSE4
0
0
4
4
Description
Description
PTBDD3
PTBSE3
3
0
3
0
PTBDD2
PTBSE2
0
0
2
2
PTBSE1
PTBDD1
Freescale Semiconductor
0
0
1
1
PTBDD0
PTBSE0
0
0
0
0