Sharp LH79524 - Table 11-4. RESCTL1 Register; Table 11-5. RESCTL1 Fields; Resistor Configuration Control 1 Register (RESCTL1)

LH79524/LH79525 User’s Guide I/O Configuration
Version 1.0 11-5
11.2.2.2 Resistor Configuration Control 1 Register (RESCTL1)
The RESCTL1 Register allows software to configure a number of the LH79524/LH79525
pull-up/pull-down resistors. Bits marked ‘LH79524 Only’ read as 0 with all writes ‘reserved’
on the LH79525.
Table 11-4. RESCTL1 Register
BIT 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
FIELD ///
RESET 0000000000000000
RW RO RO RO RO RO RO RO RO RO RO RO RO RO RO RO RO
BIT 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
FIELD /// PI2 PI1 PI0 PL1 PL0
RESET 0000000110010101
RW RO RO RO RO RO RO RW RW RW RW RW RW RW RW RW RW
ADDR 0xFFFE5000 + 0x04
Table 11-5. RESCTL1 Fields
BIT NAME DESCRIPTION
31:10 /// Reserved Reading returns 0. Write the reset value.
9:8 PI2
Pin PI2/ETHERCOL Resistor Assignment
00 = No Pull-Down or Pull-Up
01 = Pull-Down
10 = Pull-Up
11 = Reserved
7:6 PI1
Pin PI1/ETHERMDIO Resistor Assignment
00 = No Pull-Down or Pull-Up
01 = Pull-Down
10 = Pull-Up
11 = Reserved
5:4 PI0
Pin PI0/ETHERMDC Resistor Assignment
00 = No Pull-Down or Pull-Up
01 = Pull-Down
10 = Pull-Up
11 = Reserved
3:2 PL1
Pin PL1/LCDVD15 Resistor Assignment (LH79524 Only)
00 = No Pull-Down or Pull-Up
01 = Pull-Down
10 = Pull-Up
11 = Reserved
1:0 PL0
Pin PL0/LCDVD14 Resistor Assignment (LH79524 Only)
00 = No Pull-Down or Pull-Up
01 = Pull-Down
10 = Pull-Up
11 = Reserved