Datasheet

RESETB

(Terminal 3)

Reset

Normal operation

Invalid I C Cycle

Valid

260 µs (min)

20 ms (min)

TVP5158, TVP5157, TVP5156

www.ti.com

SLES243G –JULY 2009–REVISED APRIL 2013

3.12 Reset Mode

Terminal 3 (RESETB) is active low signal to hold the decoder into reset. Table 3-18 shows the

configuration of reset mode. Table 3-19 describes the status of the decoder signals during and

immediately after reset. Figure 3-22 shows the reset timing.

After power-up, the device is in an unknown state until properly reset. An active-low reset, Reset B, of

greater than or equal to 20 ms is required following active and stable supply ramp-up. To avoid potential

C issues, keep SCL and SDA inactive (high) for at least 260 µs after reset goes high. There are no

power sequencing requirements except that all power supplies should become active and stable within

500 ms of each other.

Table 3-18. Reset Mode

RESETB CONFIGURATION

0 Resets the decoder

1 Normal operation

Table 3-19. Reset Sequence

SIGNAL NAME DURING RESET RESET COMPLETED

DVO_A_[7:0], DVO_B_[7:0], DVO_C_[7:0], DVO_D_[7:0], OCLK_P, OCLK_N,

Input High-impedance

INTREQ, I2CA[2:0], BCLK_R, LRCLK_R, SD_R, SD_M, SD_CO

RESETB, SDA, SCL, LRCLK_CI, BCLK_CI, SD_CI, XTAL_IN Input Input

XTAL_OUT, OSC_OUT Output Output

Figure 3-22. Reset Timing

Submit Documentation Feedback

Product Folder Links: TVP5158 TVP5157 TVP5156