mc9s08dz32amlfr Freescale Semiconductor, Inc, mc9s08dz32amlfr Datasheet - Page 126
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mc9s08dz32amlfr
Manufacturer Part Number
mc9s08dz32amlfr
Description
Hcs08 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC9S08DZ32AMLFR.pdf
(458 pages)
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Chapter 6 Parallel Input/Output Control
6.5.7
Port G is controlled by the registers listed below.
6.5.7.1
6.5.7.2
126
PTGDD[7:0]
PTGD[7:0]
Reset:
Reset:
Field
Field
7:0
7:0
W
W
R
R
PTGDD7
PTGD7
Port G Registers
Port G Data Register Bits — For port G pins that are inputs, reads return the logic level on the pin. For port G
pins that are configured as outputs, reads return the last value written to this register.
Writes are latched into all bits of this register. For port G pins that are configured as outputs, the logic level is
driven out the corresponding MCU pin.
Reset forces PTGD to all 0s, but these 0s are not driven out the corresponding pins because reset also
configures all port pins as high-impedance inputs with pull-ups disabled.
Data Direction for Port G Bits — These read/write bits control the direction of port G pins and what is read for
PTGD reads.
0 Input (output driver disabled) and reads return the pin value.
1 Output driver enabled for port G bit n and PTGD reads return the contents of PTGDn.
Port G Data Register (PTGD)
0
Port G Data Direction Register (PTGDD)
0
7
7
PTGDD6
PTGD6
0
0
6
6
Figure 6-43. Port G Data Direction Register (PTGDD)
Table 6-41. PTGDD Register Field Descriptions
Table 6-40. PTGD Register Field Descriptions
Figure 6-42. Port G Data Register (PTGD)
PTGDD5
MC9S08DZ128 Series Data Sheet, Rev. 1
PTGD5
0
0
5
5
PTGDD4
PTGD4
0
0
4
4
Description
Description
PTGDD3
PTGD3
3
0
3
0
PTGDD2
PTGD2
0
0
2
2
PTGDD1
Freescale Semiconductor
PTGD1
0
0
1
1
PTGDD0
PTGD0
0
0
0
0
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