AM1808_1112 Datasheet, PDF (42/262 Pages) Texas Instruments – AM1808 ARM Microprocessor

AM1808
SPRS653C – FEBRUARY 2010 – REVISED DECEMBER 2011
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2.7.20 Liquid Crystal Display Controller(LCD)
Table 2-22. Liquid Crystal Display Controller (LCD) Terminal Functions
SIGNAL
NAME
TYPE ⁽¹⁾
NO.
PULL ⁽²⁾
POWER
GROUP ⁽³⁾
DESCRIPTION
VP_DOUT[15] / LCD_D[15] / UPP_XD[7] / GP7[7] / BOOT[7]
P4
I/O
CP[29]
C
VP_DOUT[14] / LCD_D[14] / UPP_XD[6] / GP7[6] / BOOT[6]
R3
I/O
CP[29]
C
VP_DOUT[13] / LCD_D[13] / UPP_XD[5] / GP7[5] / BOOT[5]
R2
I/O
CP[29]
C
VP_DOUT[12] / LCD_D[12] / UPP_XD[4] / GP7[4] / BOOT[4]
R1
I/O
CP[29]
C
VP_DOUT[11] / LCD_D[11] / UPP_XD[3] / GP7[3] / BOOT[3]
T3
I/O
CP[29]
C
VP_DOUT[10] / LCD_D[10] / UPP_XD[2] / GP7[2] / BOOT[2]
T2
I/O
CP[29]
C
VP_DOUT[9] / LCD_D[9] / UPP_XD[1] / GP7[1] / BOOT[1]
T1
I/O
CP[29]
C
VP_DOUT[8] / LCD_D[8] / UPP_XD[0] / GP7[0] / BOOT[0]
U3
I/O
CP[29]
C
VP_DOUT[7] / LCD_D[7] / UPP_XD[15] / GP7[15] /
PRU1_R31[15]
VP_DOUT[6] / LCD_D[6] / UPP_XD[14] / GP7[14] /
PRU1_R31[14]
U2
I/O
U1
I/O
CP[28]
CP[28]
C
LCD data bus
C
VP_DOUT[5] / LCD_D[5] / UPP_XD[13] / GP7[13] /
PRU1_R31[13]
V3
I/O
CP[28]
C
VP_DOUT[4] / LCD_D[4] / UPP_XD[12] / GP7[12] /
PRU1_R31[12]
V2
I/O
CP[28]
C
VP_DOUT[3] / LCD_D[3] / UPP_XD[11] / GP7[11] /
PRU1_R31[11]
V1
I/O
CP[28]
C
VP_DOUT[2] / LCD_D[2] / UPP_XD[10] / GP7[10] /
PRU1_R31[10]
W3
I/O
CP[28]
C
VP_DOUT[1] / LCD_D[1] / UPP_XD[9] / GP7[9] / PRU1_R31[9] W2
I/O
CP[28]
C
VP_DOUT[0] / LCD_D[0] / UPP_XD[8] / GP7[8] / PRU1_R31[8] W1
I/O
CP[28]
C
MMCSD1_DAT[7] / LCD_PCLK / PRU1_R30[7] / GP8[11]
F1
O
CP[31]
C
LCD pixel clock
MMCSD1_DAT[5] / LCD_HSYNC / PRU1_R30[5] / GP8[9] /
PRU1_R31[6]
H4
O
CP[31]
C
LCD horizontal sync
MMCSD1_DAT[4] / LCD_VSYNC / PRU1_R30[4] / GP8[8] /
PRU1_R31[5]
G4
O
CP[31]
C
LCD vertical sync
LCD_AC_ENB_CS / GP6[0]/ / PRU1_R31[28]
R5
O
CP[31]
C
LCD AC bias enable chip
select
MMCSD1_DAT[6] / LCD_MCLK / PRU1_R30[6] / GP8[10] /
PRU1_R31[7]
F2
O
CP[31]
C
LCD memory clock
(1) I = Input, O = Output, I/O = Bidirectional, Z = High impedance, PWR = Supply voltage, GND = Ground, A = Analog signal.
Note: The pin type shown refers to the input, output or high-impedance state of the pin function when configured as the signal name
highlighted in bold. All multiplexed signals may enter a high-impedance state when the configured function is input-only or the configured
function supports high-Z operation. All GPIO signals can be used as input or output. For multiplexed pins where functions have different
types (ie., input versus output), the table reflects the pin function direction for that particular peripheral.
(2) IPD = Internal Pulldown resistor; IPU = Internal Pullup resistor; CP[n] = configurable pull-up/pull-down (where n is the pin group) using
the PUPDENA and PUPDSEL registers in the System Module. The pull-up and pull-down control of these pins is not active until the
device is out of reset. During reset, all of the pins associated with these registers are pulled down. If the application requires a pull-up,
an external pull-up can be used. For electrical specifications on the pull-up and and internal pull-down circuits, see the Device Operating
Conditions section.
(3) This signal is part of a dual-voltage IO group (A, B or C). These groups can be operated at 3.3V or 1.8V nominal. The three groups can
be operated at independent voltages but all pins withina group will operate at the same voltage. Group A operates at the voltage of
power supply DVDD3318_A. Group B operates at the voltage of power supply DVDD3318_B. Group C operates at the voltage of power
supply DVDD3318_C.
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