RM0082
Miscellaneous registers (Misc)
Doc ID 018672 Rev 1
263/844
In general for programming purposes the slew and drive strength of Four pads are shared
by a bit as specified in table below with some exception as specified in the table. For Pull Up
and Pull down same rule follows but with some exception as specified below in the tables.
Table 195.
Pull Up and Pull Down Selection
PUP
PDN
Comment
0
0
Not Allowed
0
1
Pull-Up Activated
1
0
Pull-Down Activated
1
1
Pull-Up/Pull-Down deactivated
Table 196.
Slew selection
SL
Slew level
0
Nominal
1
Fast
Table 197.
PLGPIO0_PAD_PRG register bit assignments
PLGPIO0_PAD_PRG
0x130
Bit
Name
Reset Value
Description
[31]
PDN_UART
1’h0
Pull down control for UART (Pads 2,3)
[30]
PUP_UART
1’h1
Pull up control for UART (Pads 2,3)
[29]
PDN_5
1’h1
Pull down control for pads 20,21,22,23
[28]
PUP_5
1’h0
Pull up control for pads 20,21,22,23
[27:26]
DRV_5[1:0]
2’h0
Drive strength control for pads 20,21,22,23
[25]
SLEW_5
1'h0
Slew control for pads 20,21,22,23
[24]
PDN_4
1’h1
Pull down control for pads 16,17,18,19
[23]
PUP_4
1’h0
Pull up control for pads 16,17,18,19
[22:21]
DRV[1:0]
2’h0
Drive strength control for pads 16,17,18,19
[20]
SLEW_4
1’h0
Slew control for pads 16,17,18,19
[19]
PDN_3
1’h1
Pull down control for pads 12,13,14,15
[18]
PUP_3
1’h0
Pull up control for pads 12,13,14,15
[17:16]
DRV_3[1:0]
2’h0
Drive strength control for pads 12,13,14,15
[15]
SLEW_3
1’h0
Slew control for pads 12,13,14,15
[14]
PDN_2
1’h1
Pull down control for pads 8,9
[13]
PUP_2
1’h0
Pull Up control for pads 8,9
[12:11]
DRV_2[1:0]
2’h0
Drive Strength control for pads 8,9,10,11
[10]
SLEW_2
1’h0
Slew control for pads 8,9,10,11
[09]
PDN_1
1’h1
Pull Down control for pads 6,7