ZHCSJH7 March 2019 DS90UB940N-Q1
PRODUCTION DATA.
When PDB is driven HIGH, the CDR PLL begins locking to the serial input and the LOCK is set to tri-state or LOW (depending on the value of the OUTPUT ENABLE setting). After the deserializer completes its lock sequence to the input serial data, the LOCK output is driven HIGH to indicate valid data and alert the user that the clock recovered from the serial input is available on the LVCMOS and LVDS outputs. The state of the outputs is based on the OUTPUT ENABLE and OUTPUT SLEEP STATE SELECT register settings. See register 0x02 in Table 11. The D_GPIO are not controlled by OSS_SEL in all cases. Only in OEN low and OSS_SEL high does D_GPIO match the other GPIO behavior (high Z). In other cases, D_GPIO still operates as a normal output, instead of output Low.
INPUTS | OUTPUTS | ||||||
---|---|---|---|---|---|---|---|
SERIAL INPUT | PDB | OUTPUT ENABLE
Reg 0x02 [7] |
OUTPUT SLEEP STATE SELECT
Reg 0x02 [4] |
LOCK | PASS | DATA
GPIO / D_GPIO I2S |
CSI-2 OUTPUT |
X | L | X | X | Z | Z | Z | Z |
X | H | L | L | L or H | L | L
(D_GPIO per register setting) |
HS0 |
X | H | L | H | L or H | Z | Z | Z |
Static | H | H | L | L | L | L | HS0 |
Static | H | H | H | L | Previous status | L | HS0 |
Active | H | H | L | H | L | L
(D_GPIO per register setting) |
HS0 |
Active | H | H | H | H | Valid | Valid | Valid |