Datasheet
Table Of Contents
- Features
- Typical Applications
- 1. Introduction
- 2. Ordering Information
- 3. Application Circuit
- 4. Absolute Maximum Ratings
- 5. Electrical Characteristics
- 6. Block Diagram
- 7. Pinout and Pin Description
- 8. Typical Application Circuit
- 9. Detailed Description
- 10. Fault Conditions
- 11. Applications Information
- 12. Control Registers
- 13. Detailed Register Descriptions
- 13.1 RAM (0x00 through 0x1F)
- 13.2 Main String Reference Voltage register (MREF, 0x20)
- 13.3 Color-Adjust String Reference Voltage register (CAREF, 0x21)
- 13.4 Fault Disable register (FAULT, 0x22)
- 13.5 Fault Status register (FAULTSTAT, 0x23), Read Only
- 13.6 Sleep register (SLEEP, 0x24)
- 13.7 Main String Duty Cycle register, High Byte (MDUTYHIGH, 0x34)
- 13.8 Main String Duty Cycle register, Low Byte (MDUTYLOW, 0x35)
- 13.9 Color Adjust String Duty Cycle register, High Byte (CADUTYHIGH, 0x36)
- 13.10 Color Adjust String Duty Cycle register, Low Byte (CADUTYLOW, 0x37)
- 13.11 Efficiency Optimizer Control Register (EOCTRL, 0x40)
- 13.12 Registers 0x60 and 0x61, EEPROM Access
- 14. I²C Serial Interface
- 15. Packaging Information
- 16. Datasheet Revision History
- Table of Contents

26
MSL2023/2024 [DATASHEET]
42063A–LED–02/2013
Table 12-2. EEPROM Address register (E2ADDR, 0x60), defaults highlighted.
Table 12-3. EEPROM Control register (E2CTRL, 0x61), defaults highlighted.
13. Detailed Register Descriptions
The MSL2023/24 registers are summarized in “Control Registers” on page 24. Detailed register information follows.
13.1 RAM (0x00 through 0x1F)
32 Bytes of RAM accessible through the I
2
C serial interface. Copy data from RAM into EEPROM (see “EEPROM and
Power-Up Defaults” on page 25) to have the data automatically load into the RAM at power up, and when EN is taken
high.
Table 13-1. RAM (0x00 through 0x1F), defaults undetermined.
Register Address
Register data
D7 D6 D5 D4 D3 D2 D1 D0
E2ADDR 0x60 – E2ADDR[6:0]
DEFAULTS 00000000
EEPROM Minimum Address 0x00
–0000000
EEPROM Maximum Address 0x51
–1010001
Register Address
Register data
D7 D6 D5 D4 D3 D2 D1 D0
E2CTRL 0x61 – – – – – RWCTRL[2:0]
DEFAULTS 00000000
EEPROM Read / Write Disabled xxxxx000
Read 1 Byte from EEPROM x x x x x 0 0 1
Read 8 Bytes from EEPROM x x x x x 0 1 0
Write 1 Byte to EEPROM x x x x x 0 1 1
Write 8 Bytes to EEPROM x x x x x 1 0 0
Unused
x x x x x 1 0 1
x x x x x 1 1 x
Register name Address
Register data
D7 D6 D5 D4 D3 D2 D1 D0
RAM 0x00 – 0x1F RAM
DEFAULTS X X X X X X X X