Memory Map

The IS3720 memory map registers are 8 bit wide, and I2C memory addressing requires 2-bytes.

Reg	Register Name	Register Description
0	-	Not used.
1	DMX_CH1	DMX Channel 1 value.
2	DMX_CH2	DMX Channel 2 value.
3	DMX_CH3	DMX Channel 3 value.
...	...	DMX Channel 4 to Channel 509 values.
510	DMX_CH510	DMX Channel 510 value.
511	DMX_CH511	DMX Channel 511 value.
512	DMX_CH512	DMX Channel 512 value.
513	CHIP_ID	IS3720 chip identification number (does not change).
514	CHIP_REV	IS3720 chip revision number (may change).
515	CHIP_TEMP	IS3720 chip temperature in ºC (signed value).
516 517	DMX_START_ADDRESS	DMX start address of your product.
518	IDENTIFY_DEVICE	Device identification. When set to 1, your product flashes to help lighting technicians locate it.
519 520	DMX_FOOTPRINT	Number of DMX channels used by your product.
521 526	UID	Unique RDM identifier of your product.
527 528	CATEGORY	RDM-coded number classifying your product. See Table 2: RDM Standardized Product Categories.
529 560	MANUFACTURER_LBL	32-character ASCII string containing your product company name.
561 562	MODEL_NUM	2-byte value identifying your product model.
563 564	MODEL_LBL	32-character ASCII string containing your product name.
565 568	SOFT_NUM	4-byte value identifying your product software version.
569 630	SOFT_LBL	32-character ASCII string representing the firmware name or code of your product.
631	RDM_ONLINE	Enables or disables RDM communication (does not affect DMX) of your product.