Texas Instruments OMAP5912 Reference Manual page 499

Configuration
Table 47. Pullup/Pulldown Selection 4 Register (PU_PD_SEL_4)
Bit Name
31 CONF_PU_PD_Y18
30 CONF_PU_PD_W18
29 CONF_PU_PD_V17
28 CONF_PU_PD_Y19
27 CONF_PU_PD_V18
26 CONF_PU_PD_L3
25 CONF_PU_PD_M8
24 CONF_PU_PD_M7
23 CONF_PU_PD_M3
22 CONF_PU_PD_N8
21 CONF_PU_PD_N3
20 CONF_PU_PD_J8
19 CONF_PU_PD_D3
18 CONF_PU_PD_C1
17 CONF_PU_PD_E4
16 CONF_PU_PD_D2
15 CONF_PU_PD_F4
14 CONF_PU_PD_E3
13 CONF_PU_PD_J7
12 CONF_PU_PD_F3
11 CONF_PU_PD_G4
10 CONF_PU_PD_G3
82 Initialization
This register controls the selection of the pullup or pulldown (0 = pulldown, 1
= pullup). The pinout documentation in SPRS231 should be consulted to
determine whether a pullup or pulldown exists on the specified I/O.
COMP_MODE_CTRL_0 must be programmed to 0xEAEF for this register to
control the selection.
Base Address = 0xFFFE 1000, Offset Address = 0xC4
Function
Configure pullup (=1) or pulldown (=0) on Y18.
Configure pullup (=1) or pulldown (=0) on W18.
Configure pullup (=1) or pulldown (=0) on V17.
Configure pullup (=1) or pulldown (=0) on Y19.
Configure pullup (=1) or pulldown (=0) on V18.
Configure pullup (=1) or pulldown (=0) on L3.
Configure pullup (=1) or pulldown (=0) on M8.
Configure pullup (=1) or pulldown (=0) on M7.
Configure pullup (=1) or pulldown (=0) on M3.
Configure pullup (=1) or pulldown (=0) on N8.
Configure pullup (=1) or pulldown (=0) on N3.
Configure pullup (=1) or pulldown (=0) on J8.
Configure pullup (=1) or pulldown (=0) on D3.
Configure pullup (=1) or pulldown (=0) on C1.
Configure pullup (=1) or pulldown (=0) on E4.
Configure pullup (=1) or pulldown (=0) on D2.
Configure pullup (=1) or pulldown (=0) on F4.
Configure pullup (=1) or pulldown (=0) on E3.
Configure pullup (=1) or pulldown (=0) on J7.
Configure pullup (=1) or pulldown (=0) on F3.
Configure pullup (=1) or pulldown (=0) on G4.
Configure pullup (=1) or pulldown (=0) on G3.
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
R/W 0x0
R/W 0X0
SPRU752B