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CDCE6214-Q1: Read default Values dont match the datasheet can't write into register

Part Number: CDCE6214-Q1

Hey 

I try to configure my CDC IC and i can't write stuff into the registers. 

I boot in Fallback mode so REFSEL and HW control are left floating and its connected to a STM32. 

I cant use Tics cause we implemented a special messaging protocoll so no direct USB connection so the Chip is possible.

i can read the Chapters and got a list of all registers but they dont match  table 9-22 of the datasheet and this one is different to the CDCE6214-Q1 Register Map document. 

So questions are what is wrong with the default registers and did I miss any step i have to do before i can program the registers?

Best regards

  • Hello Dominik,

    Can you send us the register map you're reading off the device?

    Thanks,

    Cris

  • Hey Chris,

    this is what I get 

    Hope the formatting is okay.

    0x00 data 0x10 00
    0x01 data 0x23 10
    0x02 data 0x00 00
    0x03 data 0x00 00
    0x04 data 0x00 00
    0x05 data 0x00 08
    0x06 data 0x19 ca
    0x07 data 0x04 0c
    0x08 data 0x00 01
    0x09 data 0x00 00
    0x0a data 0x00 00
    0x0b data 0x00 00
    0x0c data 0x00 00
    0x0d data 0x00 00
    0x0e data 0x00 00
    0x0f data 0xa0 37
    0x10 data 0x92 1f
    0x11 data 0x26 c4
    0x12 data 0x00 00
    0x13 data 0x00 00
    0x14 data 0x00 00
    0x15 data 0x05 85
    0x16 data 0x00 a2
    0x17 data 0x04 06
    0x18 data 0x07 18
    0x19 data 0x04 00
    0x1a data 0x00 00
    0x1b data 0x00 05
    0x1c data 0x00 00
    0x1d data 0x00 00
    0x1e data 0x00 30
    0x1f data 0x00 00
    0x20 data 0x00 00
    0x21 data 0x00 00
    0x22 data 0x00 00
    0x23 data 0x00 28
    0x24 data 0x00 00
    0x25 data 0x00 00
    0x26 data 0x00 00
    0x27 data 0x00 00
    0x28 data 0x00 00
    0x29 data 0x00 00
    0x2a data 0x00 02
    0x2b data 0x00 51
    0x2c data 0x03 18
    0x2d data 0x4f 80
    0x2e data 0x00 00
    0x2f data 0x0a 00
    0x30 data 0x1a 14
    0x31 data 0x00 13
    0x32 data 0x01 c0
    0x33 data 0x40 c0
    0x34 data 0x50 00
    0x35 data 0x00 69
    0x36 data 0x34 00
    0x37 data 0x00 1e
    0x38 data 0x00 06
    0x39 data 0x40 00
    0x3a data 0x50 2c
    0x3b data 0x00 08
    0x3c data 0x00 08
    0x3d data 0x00 00
    0x3e data 0x00 06
    0x3f data 0x20 00
    0x40 data 0xa1 81
    0x41 data 0x00 08
    0x42 data 0x00 00
    0x43 data 0x00 06
    0x44 data 0x20 00
    0x45 data 0xa1 81
    0x46 data 0x00 08
    0x47 data 0x00 00
    0x48 data 0x00 06
    0x49 data 0x20 00
    0x4a data 0xa1 81
    0x4b data 0x00 08
    0x4c data 0x00 08
    0x4d data 0x00 00
    0x4e data 0x10 00
    0x4f data 0x00 08
    0x50 data 0x00 00
    0x51 data 0x00 04
    0x52 data 0x06 00
    0x53 data 0x0f fc
    0x54 data 0x00 00
    0x55 data 0x00 00

  • Dominik,

    We will test this on the bench and get back to you by the end of this week.

    Best, 

    Cris

  • Dominik,

    This looks to be largely the same as the fall-back mode default settings (any Reserved fields can be a '0' or a '1'). 

    Loading the file into TICS Pro shows that this is a match for the fallback mode settings (I had to tweak the format of the file to match a standard import/export file):

    R85	0x550000
    R84	0x540000
    R83	0x530ffc
    R82	0x520600
    R81	0x510004
    R80	0x500000
    R79	0x4f0008
    R78	0x4e1000
    R77	0x4d0000
    R76	0x4c0008
    R75	0x4b0008
    R74	0x4aa181
    R73	0x492000
    R72	0x480006
    R71	0x470000
    R70	0x460008
    R69	0x45a181
    R68	0x442000
    R67	0x430006
    R66	0x420000
    R65	0x410008
    R64	0x40a181
    R63	0x3f2000
    R62	0x3e0006
    R61	0x3d0000
    R60	0x3c0008
    R59	0x3b0008
    R58	0x3a502c
    R57	0x394000
    R56	0x380006
    R55	0x37001e
    R54	0x363400
    R53	0x350069
    R52	0x345000
    R51	0x3340c0
    R50	0x3201c0
    R49	0x310013
    R48	0x301a14
    R47	0x2f0a00
    R46	0x2e0000
    R45	0x2d4f80
    R44	0x2c0318
    R43	0x2b0051
    R42	0x2a0002
    R41	0x290000
    R40	0x280000
    R39	0x270000
    R38	0x260000
    R37	0x250000
    R36	0x240000
    R35	0x230028
    R34	0x220000
    R33	0x210000
    R32	0x200000
    R31	0x1f0000
    R30	0x1e0030
    R29	0x1d0000
    R28	0x1c0000
    R27	0x1b0005
    R26	0x1a0000
    R25	0x190400
    R24	0x180718
    R23	0x170406
    R22	0x1600a2
    R21	0x150585
    R20	0x140000
    R19	0x130000
    R18	0x120000
    R17	0x1126c4
    R16	0x10921f
    R15	0x0fa037
    R14	0x0e0000
    R13	0x0d0000
    R12	0x0c0000
    R11	0x0b0000
    R10	0x0a0000
    R9	0x090000
    R8	0x080001
    R7	0x07040c
    R6	0x0619ca
    R5	0x050008
    R4	0x040000
    R3	0x030000
    R2	0x020000
    R1	0x012310
    R0	0x001000

    Thanks,

    Kadeem