PXR40RM Datasheet, PDF (68/1434 Pages) Freescale Semiconductor, Inc – PXR40 Microcontroller

Signal Descriptions
Table 3-2 is an example of the options for PA on two balls, where “true” and “complement” LVDS outputs
are multiplexed with SCK_C and SINC.
Table 3-2. LVDS example
PCR235¹[PA] PCR236²[PA]
Selection
Selection
SCKC Ball
function
SINC Ball
function
SCKC
SINC
SCKC
SINC
LVDS
LVDS
SCK_C_LVDS+ SCK_C_LVDS-
SCKC
LVDS
SCKC
undriven
LVDS
SINC
undriven
1 _{SCKC_SCK_C_LVDSP_GPIO235}
2 _{SINC_SCK_C_LVDSM_GPIO236}
SINC
Additionally, when LVDS signals are enabled on balls, their PCR SRC[1:0] bits control the differential
signal output swing increase and decrease, as defined in Table 3-3.
Table 3-3. Differential Signal Output when LVDS is Enabled
SRC1
SRC0
Current
flowing in the
driver
Differential Voltage Across
‘true’ and ‘complement’
0
0
normal
default
0
1
increased
increased (20%)
1
0
decreased
decreased (20%)
1
1
normal
same as default
PXR40 Microcontroller Reference Manual, Rev. 1
3-2
Freescale Semiconductor