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Part Number: LMK05318
1.If I select HW_SW_CTRL = 0: EEPROM + I2 C Mode (Soft pin mode),but no e2prom on board, Can I set registers by I2C after power-on?
2.If I select HW_SW_CTRL = 1: ROM + I2C Mode (Hard pin mode),TI datasheet has a description---
" All register pages in the ROM image can be factory-set in hardware (mask ROM) and are not software programmable. "
This mean the ROM image set by TI factory and I cann't modify the ROM image?
In my now design,no e2prom is on board. So only ROM+i2c mode is ok?
You can write to registers via I2C in both options (HW_SW_CTRL = 0 or 1). In other words, EEPROM or ROM, it only means what to load upon power up. After powerup, you can write any configuration to the device via I2C. If you plan to use one of the ROM pages, then set HW_SW_CTRL = 1. Otherwise, set it to 0.
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In reply to Hao Z:
Is the e2prom on-chip e2prom,not external e2prom?
In reply to wenxing zheng:
Yes it is on-chip EEPROM.
Our design requirements are in the attachment.
Two 25MHz 3.3V LVCMOS input clcok, three 25MHz 3.3V LVCMOS output and one 10MHz 3.3V LVCMOS output.
What is clock solution applicable for this design req? I feel LMK05318 is not OK for the req.
Could you help to recommend it?
I'm closing this ticket since there's a duplicated questions on another thread.
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