JAJSCC4A July 2016 – January 2024 DS90UB964-Q1
PRODUCTION DATA
Each DS90UB964-Q1 GPIO pin defaults to input mode at start-up. The deserializer can link GPIO pin input data on up to four available slots to send on the back channel per each remote serializer connection. Any of the 8 GPIO pin data can be mapped to send over the available back channel slots for each FPD-Link III Rx port. The same GPIO on the deserializer pin can be mapped to multiple back channel GPIO signals. For 2.5Mbps back channel operation, the frame period is 12µs (30 bits × 400ns/bit).
In addition to sending GPIO from pins, an internally generated FrameSync or external FrameSync input signal can be mapped to any of the back channel GPIOs for synchronization of multiple sensors with extremely low skew (see Section 5.4.22).
For each port, the following GPIO control is available through the BC_GPIO_CTL0 register 0x6E and BC_GPIO_CTL1 register 0x6F.