MC9S08AC16_08 Datasheet, PDF (94/344 Pages) Freescale Semiconductor, Inc – 8-Bit HCS08 Central Processor Unit (CPU)

Chapter 6 Parallel Input/Output
7
6
5
4
3
2
R
R
R
R
R
PTBDS3
PTBDS2
W
Reset
0
0
0
0
0
0
Figure 6-19. Internal Pullup Enable for Port B (PTBDS)¹
1 _{Bits 7 through 4 are reserved bits that must always be written to 0.}
1
PTBDS1
0
0
PTBDS0
0
Table 6-10. PTBDS Register Field Descriptions
Field
Description
3:0
PTBDS[3:0]
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.
MC9S08AC16 Series Data Sheet, Rev. 6
94
Freescale Semiconductor