TM4C129XKCZAD Datasheet, PDF (1868/2188 Pages) Texas Instruments – Tiva Microcontroller

LCD Controller
Bit/Field
6
5
4
3
Name
CS0E0
WRDIRINV
RDEN
ALE
Type
RW
RW
RW
RW
Reset
0
Description
Chip Select 0 (CS0)/Enable 0 (E0) Polarity Control
CS0 is active low by default. E0 is active high by default.
Value Description
0 CS0/E0 (LCDAC) are not inverted. CS0 remains active low and
E0 remains active high.
1 Invert CS0/E0. CS0 is active high and E0 is active low.
0
Write Strobe (WR) /Direction (DIR) Polarity Control
WR active low by default. DIR is write low/read high by default.
Value Description
0 WR/DIR (LCDLP) are not inverted. WR remains active low and
DIR is write low/read high.
1 Invert WR/DIR. WR is active high and DIR is write high/read
low.
0
Read Strobe (RD) /Direct Enable (EN) Polarity Control
RD is active low by default. EN is active high by default.
Value Description
0 RD/EN (LCDCP) are not inverted. RD is active low and EN is
active high.
1 Invert RD/EN (LCDCP). RD is active high and EN is active low.
0
Address Latch Enable (ALE) Polarity Control
ALE is active low by default.
Value Description
0 ALE (LCDFP) is not inverted.
1 Invert ALE (LCDFP) . ALE is active high.
2:0
MODE
RW
0x0
LIDD Mode Select.
Selects type of LCD display interface for the LIDD to drive. See Table
26-3 on page 1843 for external pin assignments based on MODE encoding.
Value Description
0x0 Synchronous Motorola 6800 Mode
0x1 Asynchronous Motorola 6800 Mode
0x2 Synchronous Intel 8080 mode
0x3 Asynchronous Intel 8080 mode
0x4 Asynchronous Hitachi mode
0x5-0x7 reserved
The MODE bit field described above defines the function of the LCD external pins as follows:
1868
Texas Instruments-Production Data
June 18, 2014