TVP3025 datasheet(71/99 Pages) TI

71 / 99 page

2–57

2.4.15.2 Command Register 1 (RS value = 11000)

Writing to command register 1 (or at device reset) sets output-clock-selection register bits 2, 5, and 6 to

logic 0.

Table 2–24. Command Register 1 (RS value = 11000)

BIT

NAME

VALUES

DESCRIPTION

CR17

Reserved

CR17

Reserved

00: 24 bits/pixel

CR16,

01: 16 bits/pixel

Operation mode selection See Section 2 4 10 and Tables 2 18 through 2 21

10: 8 bits/pixel

Operation mode selection. See Section 2.4.10 and Tables 2–18 through 2–21.

11: 4 bits/pixel

CR14

0: Nonbypass (default)

This bit must be set to logic 1 for BT485 mode true color operation using the

CR14

1: Palette bypass

TVP3025.

CR13

0: 5:5:5 RGB format

(default)

16 bit/pixel data format select. See Section 2.4.10.3 and Tables 2–18 through

2–20

1: 5:6:5 RGB format

2–20.

CR12

16 bit/pixel multiplex mode select. Not supported on the TVP3025. The default

CR12

is 2:1, but 4:1 can be selected with CR40.

CR11

16 bit real time switch Not supported on the TVP3025

CR11

16 bit real time switch. Not supported on the TVP3025.

CR10

16 bit/pixel port switch control Not supported on the TVP3025

CR10

16 bit/pixel port switch control. Not supported on the TVP3025.

NOTE: The following command register 1 bits are written into the following TVP3025 indirect register bits: CR13 into

multiplexer-control register 1 bit 0, CR14 into multiplexer-control register 1 bit 6, CR15 into multiplexer-control

bit 1, CR15 into multiplexer-control register 1 bit 3, CR16 into multiplexer-control register 1 bit 7, and CR16 into

output-clock-selection register bits 1 and 4.

These registers are not initialized at power up. All command registers are set to a logic 0 when a low signal is

asserted at the RESET terminal.

TVP3025 Datasheet(PDF) 71 Page - Texas Instruments

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