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LMK05318B: external EEPROM capacity requirement

Victor Yu
Expert 5321 points
Part Number: LMK05318B
Other Parts Discussed in Thread: LMK05318

Tool/software:

Hi Team

There are two questions need your confirm:


1. Customer want to use a external EEPROM for LMK05318B, because they can burn the external EEPROM before soldering. What is the required capacity of the external EEPROM? is 4KB enough?
2. The attachment is a firmware customer output. Please help check whether the configuration is correct.
XO input 25MHz
Output0/1: AC-LVPECL 156.25MHz
Output2/3: disable
Output4: HCSL 50MHz
Output5: HCSL 156.25MHz
Output6: AC-LVDS 156.25MHz
Output7: disable

Thanks

LMK05318固件.rar

  • 0
    TI__Genius 17035 points

    Hi Victor,

    1. The EEPROM page in TICS Pro can export a smaller file which contains only the necessary registers to program. The original .txt file you provided contains all of the registers, including the read-only status signals which do not need to be programmed. I have attached the file below.
      2. Fullscreen LMK05318_XO 25M input_EEPROM registers only.txt Download 
        R12	0x000C3B	
R15	0x000F00	
R16	0x001000	
R17	0x00111D	
R18	0x0012FF	
R21	0x001500	
R22	0x001600	
R23	0x001755	
R24	0x001855	
R25	0x001900	
R26	0x001A00	
R27	0x001B00	
R28	0x001C01	
R29	0x001D11	
R30	0x001E40	
R32	0x002044	
R35	0x002300	
R36	0x002403	
R37	0x002500	
R38	0x002600	
R39	0x002702	
R40	0x002800	
R41	0x002900	
R42	0x002A01	
R43	0x002BC2	
R44	0x002C01	
R45	0x002D00	
R46	0x002E11	
R47	0x002F07	
R48	0x003050	
R49	0x00314A	
R50	0x003222	
R51	0x003318	
R52	0x003418	
R53	0x00350F	
R54	0x003618	
R55	0x003718	
R56	0x003800	
R57	0x00392C	
R58	0x003A31	
R59	0x003B2C	
R60	0x003C0F	
R61	0x003D10	
R62	0x003E0F	
R63	0x003F2C	
R64	0x004000	
R65	0x004100	
R66	0x004200	
R67	0x004300	
R68	0x004408	
R69	0x004500	
R70	0x004600	
R71	0x004700	
R73	0x004900	
R74	0x004A00	
R75	0x004B00	
R76	0x004C00	
R77	0x004D0F	
R78	0x004E00	
R79	0x004F10	
R80	0x005080	
R81	0x00510A	
R82	0x005200	
R83	0x00530E	
R84	0x005410	
R85	0x00555D	
R86	0x005600	
R87	0x00571E	
R88	0x005884	
R89	0x005982	
R90	0x005A00	
R91	0x005B14	
R92	0x005C00	
R93	0x005D0E	
R94	0x005E10	
R95	0x005F5D	
R96	0x006000	
R97	0x00611E	
R98	0x006284	
R99	0x006382	
R100	0x006429	
R101	0x006502	
R102	0x006622	
R103	0x00670F	
R104	0x006818	
R105	0x006905	
R106	0x006A00	
R107	0x006B64	
R108	0x006C00	
R109	0x006DC8	
R110	0x006E00	
R111	0x006F00	
R112	0x007000	
R113	0x007100	
R114	0x007200	
R115	0x007303	
R116	0x007401	
R117	0x007500	
R118	0x007600	
R119	0x007700	
R120	0x007800	
R121	0x007900	
R129	0x008105	
R130	0x008200	
R131	0x008301	
R132	0x008401	
R133	0x008577	
R134	0x008600	
R135	0x008728	
R136	0x00884F	
R137	0x00898F	
R138	0x008A8A	
R139	0x008B03	
R140	0x008C02	
R141	0x008D00	
R142	0x008E01	
R143	0x008F01	
R144	0x009077	
R145	0x009101	
R146	0x009281	
R147	0x009320	
R149	0x00950D	
R150	0x009600	
R151	0x009701	
R152	0x00980D	
R153	0x009929	
R154	0x009A24	
R180	0x00B400	
R181	0x00B500	
R182	0x00B600	
R183	0x00B700	
R184	0x00B800	
R185	0x00B985	
R186	0x00BA18	
R187	0x00BB00	
R188	0x00BC00	
R189	0x00BD00	
R190	0x00BE01	
R191	0x00BF00	
R192	0x00C050	
R193	0x00C12B	
R194	0x00C22B	
R195	0x00C300	
R196	0x00C400	
R197	0x00C51D	
R198	0x00C600	
R199	0x00C700	
R200	0x00C81C	
R201	0x00C900	
R202	0x00CA00	
R203	0x00CB00	
R204	0x00CC15	
R205	0x00CD00	
R206	0x00CE00	
R207	0x00CF16	
R208	0x00D000	
R209	0x00D108	
R210	0x00D200	
R211	0x00D30A	
R212	0x00D400	
R213	0x00D508	
R214	0x00D600	
R215	0x00D70A	
R216	0x00D800	
R217	0x00D900	
R218	0x00DA03	
R219	0x00DB2D	
R220	0x00DCB9	
R221	0x00DD00	
R222	0x00DE06	
R223	0x00DF1A	
R224	0x00E081	
R225	0x00E100	
R226	0x00E203	
R227	0x00E32D	
R228	0x00E4B9	
R229	0x00E500	
R230	0x00E606	
R231	0x00E71A	
R232	0x00E881	
R233	0x00E90A	
R234	0x00EA0A	
R235	0x00EB00	
R236	0x00EC00	
R237	0x00ED00	
R238	0x00EE01	
R239	0x00EF00	
R240	0x00F000	
R241	0x00F100	
R242	0x00F201	
R243	0x00F300	
R244	0x00F400	
R249	0x00F900	
R250	0x00FA00	
R251	0x00FB31	
R252	0x00FC2D	
R253	0x00FD00	
R254	0x00FE00	
R255	0x00FF00	
R256	0x010000	
R257	0x010101	
R258	0x010200	
R259	0x010301	
R260	0x010402	
R261	0x010580	
R262	0x010600	
R263	0x010700	
R264	0x010800	
R265	0x010900	
R266	0x010AC8	
R267	0x010BA0	
R268	0x010C0C	
R269	0x010D0A	
R270	0x010E03	
R271	0x010FFD	
R272	0x011000	
R273	0x011100	
R274	0x011200	
R275	0x01130E	
R276	0x01140C	
R277	0x01150E	
R278	0x011609	
R279	0x011708	
R280	0x011809	
R281	0x011907	
R282	0x011A0D	
R283	0x011B07	
R284	0x011C08	
R285	0x011D08	
R286	0x011E02	
R287	0x011F30	
R288	0x012000	
R289	0x0121EE	
R290	0x012202	
R291	0x0123CA	
R292	0x012409	
R293	0x012501	
R294	0x012600	
R295	0x01272C	
R296	0x012807	
R297	0x01290B	
R298	0x012A07	
R299	0x012B01	
R300	0x012C00	
R301	0x012D1C	
R302	0x012E20	
R303	0x012F00	
R304	0x013001	
R305	0x013100	
R306	0x013200	
R307	0x013300	
R308	0x013410	
R309	0x0135AA	
R310	0x0136AA	
R311	0x0137AA	
R312	0x0138AA	
R313	0x0139AA	
R314	0x013AFF	
R315	0x013BFF	
R316	0x013CFF	
R317	0x013DFF	
R318	0x013EFF	
R319	0x013F03	
R320	0x014000	
R321	0x01410A	
R322	0x014200	
R323	0x014324	
R324	0x01449F	
R325	0x014500	
R326	0x014600	
R327	0x014798	
R328	0x014896	
R329	0x014980	
R330	0x014A00	
R331	0x014B64	
R332	0x014C00	
R333	0x014D24	
R334	0x014E9F	
R335	0x014F00	
R336	0x015000	
R337	0x015198	
R338	0x015296	
R339	0x015380	
R340	0x015400	
R341	0x015500	
R342	0x015600	
R343	0x015700	
R344	0x015800	
R345	0x015900	
R346	0x015A00	
R347	0x015B00	
R348	0x015C00
R349	0x015D00	
R350	0x015E00	
R351	0x015FB7
    2. Will a host device (such as FPGA/ASIC/CPU) be used to read the external EEPROM and then write to the LMK05318B? Or will the external EEPROM contain the  register writes I2C transactions to program the device? The EEPROM size is based on the size of the register list or I2C transaction list file.

    Regards,

    Jennifer

  • 0
    Intellectual 321 points

    Hi Victor,

    If you assume that the full HexRegisterValues output from TICS Pro needs to be loaded from the eeprom, than you have 334 lines of register values of one byte.
    But be careful that the register number is not incremented continuously and do not touch the intermediate registers.
    So, the registers need to be addressed like in the HexRegisterValues file.
    Bytes: reg_high + reg_low + value = 3 bytes per register
    334 * 3 = 1002 bytes total eeprom space
    It can be less because only the difference from factory default need to be loaded.

    To answer the question: is 4 KB enough? Yes 4096 Bytes is enough

  • 0 in reply to Octo Halsema
    TI__Genius 17035 points

    Hi Octo,

    Thanks for providing an example.

    Regards,

    Jennifer