Datasheet

Port Integration Module (S12XSPIMV1)
S12XS Family Reference Manual, Rev. 1.13
114 Freescale Semiconductor
2.3.61 Port J Reduced Drive Register (RDRJ)
2.3.62 Port J Pull Device Enable Register (PERJ)
Address 0x026B Access: User read/write
1
1
Read: Anytime
Write: Anytime
76543210
R
RDRJ7 RDRJ6
0000
RDRJ1 RDRJ0
W
Reset 00000000
Figure 2-59. Port J Reduced Drive Register (RDRJ)
Table 2-58. RDRJ Register Field Descriptions
Field Description
7-6, 1-0
RDRJ
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.
Address 0x026C Access: User read/write
1
1
Read: Anytime
Write: Anytime
76543210
R
PERJ7 PERJ6
0000
PERJ1 PERJ0
W
Reset 11111111
Figure 2-60. Port J Pull Device Enable Register (PERJ)
Table 2-59. PERJ Register Field Descriptions
Field Description
7-6, 1-0
PERJ
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