Texas Instruments OMAP5912 Reference Manual page 493

Configuration
Table 43. Pullup/Pulldown Selection 0 Register (PU_PD_SEL_0)
Bit Name
31 CONF_PU_PD_L14
30 CONF_PU_PD_M18
29 CONF_PU_PD_M19
28 CONF_PU_PD_L15
27 CONF_PU_PD_L18
26 CONF_PU_PD_L19
25 CONF_PU_PD_K14
24 CONF_PU_PD_K15
23 CONF_PU_PD_K19
22 CONF_PU_PD_K18
21 CONF_PU_PD_J14
20 CONF_PU_PD_J19
19 CONF_PU_PD_J18
18 CONF_PU_PD_J15
17 CONF_PU_PD_H19
16 CONF_PU_PD_H20
15 CONF_PU_PD_H18
14 CONF_PU_PD_H15
13 CONF_PU_PD_G21
12 CONF_PU_PD_G20
76 Initialization
This register controls the enable or disable of the combined pullup/pulldown
cell (0 = enabled, 1 = disabled). When enabling the cell, the user must set the
corresponding bit in PU_PD_SEL_4 to select either a pullup or a pulldown. The
pinout documentation (Application Processor Data Manual (SPRS231)) must
be consulted to determine whether a pullup or pulldown exists on the specified
I/O. COMP_MODE_CTRL_0 must be programmed to 0xEAEF, so that the
programming is taken into account in the corresponding tactical cell.
Base Address = 0xFFFE 1000, Offset Address = 0xB4
Function
Configure pullup (=1) or pulldown (=0) on L14.
Configure pullup (=1) or pulldown (=0) on M18.
Configure pullup (=1) or pulldown (=0) on M19.
Configure pullup (=1) or pulldown (=0) on L15.
Configure pullup (=1) or pulldown (=0) on L18.
Configure pullup (=1) or pulldown (=0) on L19.
Configure pullup (=1) or pulldown (=0) on K14.
Configure pullup (=1) or pulldown (=0) on K15.
Configure pullup (=1) or pulldown (=0) on K19.
Configure pullup (=1) or pulldown (=0) on K18.
Configure pullup (=1) or pulldown (=0) on J14.
Configure pullup (=1) or pulldown (=0) on J19.
Configure pullup (=1) or pulldown (=0) on J18.
Configure pullup (=1) or pulldown (=0) on J15.
Configure pullup (=1) or pulldown (=0) on H19.
Configure pullup (=1) or pulldown (=0) on H20.
Configure pullup (=1) or pulldown (=0) on H18.
Configure pullup (=1) or pulldown (=0) on H15.
Configure pullup (=1) or pulldown (=0) on G21.
Configure pullup (=1) or pulldown (=0) on G20.
R/W Reset
R/W 0x0
R/W 0x0
R/W 0x0
R/W 0x0
R/W 0x0
R/W 0x0
R/W 0x0
R/W 0x0
R/W 0x0
R/W 0x0
R/W 0x0
R/W 0x0
R/W 0x0
R/W 0x0
R/W 0x0
R/W 0x0
R/W 0x0
R/W 0x0
R/W 0x0
R/W 0x0
SPRU752B