ZHCSA87F August 2012 – June 2019 DLP7000
The Serial Communications Port (SCP) is a full duplex, synchronous, character-oriented (byte) port that allows exchange of commands from the DLPC410 to the DLPA200. One SCP bus is used for the DLP7000.
There are five signal lines associated with the SCP bus: SCPEN, SCPCK, SCPDI, SCPDO, and IRQ.
Table 4 lists the available controls and status pin names and their corresponding signal type, along with a brief functional description.
|A_SCPEN||Active low chip select for DLPA200 serial bus||O|
|A_STROBE||DLPA200 control signal strobe||O|
|A_MODE(1:0)||DLPA200 mode control||O|
|A_SEL(1:0)||DLPA200 select control||O|
|A_ADDR(3:0)||DLPA200 address control||O|
|B_SCPEN||Active low chip select for DLPA200 serial bus (2)||O|
|B_STROBE||DLPA200 control signal strobe (2)||O|
|B_MODE(1:0)||DLPA200 mode control||O|
|B_SEL(1:0)||DLPA200 select control||O|
|B_ADDR(3:0)||DLPA200 address control||O|
The DLPA200 provides a variety of output options to the DMD by selecting logic control inputs: MODE[1:0], SEL[1:0] and reset group address A[3:0] (Table 4). The MODE[1:0] input determines whether a single output, two outputs, four outputs, or all outputs, will be selected. Output levels (VBIAS, VOFFSET, or VRESET) are selected by SEL[1:0] pins. Selected outputs are tri-stated on the rising edge of the STROBE signal and latched to the selected voltage level after a break-before-make delay. Outputs will remain latched at the last Micromirror Clocking Pulse waveform level until the next Micromirror Clocking Pulse waveform cycle.