Example Of Protocol Using An Lcd Controller (Cop472-3); Loading Sequence - Texas Instruments OMAP5910 Reference Manual

1.4

Example of Protocol Using an LCD Controller (COP472-3)

1.4.1

Loading Sequence

SPRU686
7) Set the following fields of the control and status register (CSR):
NB_BITS_RD: 0
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NB_BITS_WR: 16 (decimal)
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INDEX: 00
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CS_CMD 1
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START: 1
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8) Wait for the CSRB bit of the CSR to be reset.
9) Set the following fields of the control and status register (CSR):
INDEX: 00
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CS_CMD: 0
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START: 0
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Set up the interface by writing in the setup register 1 (SR1) the following value:
CS_EDGE_RD = 1
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CS_EDGE_WR = 0
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CSCS_LVL = 0
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CS_FRQ = 10
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CS_CHK = 0
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This example describes a loading sequence to drive a four-digit display.
1) Set the following fields of the control and status register (CSR):
NB_BITS_RD: 0
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NB_BITS_WR: 0
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INDEX: 01
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CS_CMD: 1
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START: 0
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2) Wait for the CSRB bit of the control and status register (CSR) to be reset.
3) Load the transmit data register (TDR) with:
D7d1...D0d1 D7d2...D0d2 D7d1...D0d1: Data for digit 1
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D7d2...D0d2: Data for digit 2
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4) Set the following fields of the control and status register (CSR):
NB_BITS_RD: 0
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NB_BITS_WR: 16 (decimal)
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INDEX: 01
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CS_CMD: 1
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START: 1
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MicroWire Interface
MicroWire Interface
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