mc9s12xs128 Freescale Semiconductor, Inc, mc9s12xs128 Datasheet - Page 114

• Manufacturer Part Number: mc9s12xs128
• Description: Hcs12 Microcontrollers 16-bit Automotive Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

1
1
Port Integration Module (S12XSPIMV1)
2.3.61
2.3.62
114
Address 0x026B
Address 0x026C
7-6, 1-0
7-6, 1-0
Read: Anytime.
Write: Anytime.
Read: Anytime.
Write: Anytime.
RDRJ
PERJ
Field
Field
Reset
Reset
W
W
R
R
Port J reduced drive—Select reduced drive for outputs
This bit configures the drive strength of the associated output pin as either full or reduced. If a pin is used as input
this bit has no effect. The reduced drive function is independent of which function is being used on a particular pin.
1 Reduced drive selected (approx. 1/5 of the full drive strength).
0 Full drive strength enabled.
Port J pull device enable—Enable pull device on input pin
This bit controls whether a pull device on the associated port input pin is active. If a pin is used as output this bit has
no effect. The polarity is selected by the related polarity select register bit.
1 Pull device enabled
0 Pull device disabled
RDRJ7
PERJ7
Port J Reduced Drive Register (RDRJ)
Port J Pull Device Enable Register (PERJ)
0
1
7
7
RDRJ6
PERJ6
0
1
Figure 2-60. Port J Pull Device Enable Register (PERJ)
6
6
Figure 2-59. Port J Reduced Drive Register (RDRJ)
Table 2-58. RDRJ Register Field Descriptions
Table 2-59. PERJ Register Field Descriptions
S12XS Family Reference Manual, Rev. 1.10
0
0
0
1
5
5
0
0
0
1
4
4
Description
Description
3
0
0
3
0
1
0
0
0
1
2
2
Freescale Semiconductor
RDRJ1
PERJ1
Access: User read/write
Access: User read/write
0
1
1
1
RDRJ0
PERJ0
0
1
0
0
1
1