Public Version
SCM Register Manual
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Bits
Field Name
Description
Type
Reset
14
PRG_CHASSIS_PRCM_LB
Format used in the field name below is :
RW
0
(programmable_group_name)_(configurable_pin on IO cell)
Far end load setting.Transmission Line (TL) characteristic
impedance is 50 Ohm, TL capacitance =1pF / cm:
0x0: Far end load = [1pF-10pF] / TL length=[1cm-6cm] 0x1:
Far end load = [10pF-16pF] / TL length=[1cm-6cm]
13:12
PRG_I2C1_HS
The bits select a proper resistor value for the I2C1 pullups
RW
0x0
for a given load range at FS / HS modes.
Format used in the field name below is:
(programmable_group_name)_(configurable_pin on IO cell)
FS mode :
0b00: 4,5K Ohms / 5-15pF cap.load
0b01: 2,1K Ohms /15-50pF cap.load
0b10: 860 Ohms / 50-150pF cap.load
0b11: Reserved
HS mode :
0b00: 1,66K Ohms / 5-12pF cap.load
0b01: 920 Ohms / 12-25pF cap.load
0b10: 500 Ohms/ 25-50pF cap.load
0b11: 300 Ohms/ 50-80pF cap.load
See
for example [LB1:LB0] bit field vs
PRG_I2C1_PULLUPRESX bit combinations.
11:10
PRG_I2C2_FS
The bits select a proper resistor value for the I2C2 pull-ups
RW
0x0
for a given load range at FS / HS modes.
Format used in the field name below is :
(programmable_group_name)_(configurable_pin on IO cell)
FS mode :
0b00: 4,5K Ohms / 5-15pF cap.load
0b01: 2,1K Ohms /15-50pF cap.load
0b10: 860 Ohms / 50-150pF cap.load
0b11: Reserved
HS mode :
0b00: 1,66K Ohms / 5-12pF cap.load
0b01: 920 Ohms / 12-25pF cap.load
0b10: 500 Ohms/ 25-50pF cap.load
0b11: 300 Ohms/ 50-80pF cap.load
See
for example [LB1:LB0] bit field vs
PRG_I2C2_PULLUPRESX bit combinations.
9:8
PRG_I2C3_FS
The bits select a proper resistor value for the I2C3 pull-ups
RW
0x0
for a given load range at FS / HS modes.
Format used in the field name below is :
(programmable_group_name)_(configurable_pin on IO cell)
FS mode :
0b00: 4,5K Ohms / 5-15pF cap.load
0b01: 2,1K Ohms /15-50pF cap.load
0b10: 860 Ohms / 50-150pF cap.load
0b11: Reserved
HS mode :
0b00: 1,66K Ohms / 5-12pF cap.load
0b01: 920 Ohms / 12-25pF cap.load
0b10: 500 Ohms/ 25-50pF cap.load
0b11: 300 Ohms/ 50-80pF cap.load
See
for example [LB1:LB0] bit field vs
PRG_I2C3_PULLUPRESX bit combinations.
7
PRG_I2C3_PULLUPRESX
Format used in the field name below is :
RW
0x1
(programmable_group_name)_(configurable_pin on IO cell)
I2C3 pad group control for internal pull-up resistors enable:
0x0 : Enables internal pull-ups for the I2C3 pad group
0x1: Disables internal pull-ups for the I2C3 pad group
6
PRG_CHASSIS_JTAG_LB_STR
Format used in the field name below is :
RW
0
(programmable_group_name)_(configurable_pin on IO cell)
Far end load setting.Transmission Line (TL) characteristic
impedance is 50 Ohm, TL capacitance =1pF / cm:
0x0: Far end load = [1pF-10pF] / TL length=[1cm-6cm] 0x1:
Far end load = [10pF-16pF] / TL length=[1cm-6cm]
2596
System Control Module
SWPU177N – December 2009 – Revised November 2010
Copyright © 2009–2010, Texas Instruments Incorporated