Hi,
We have some questions regarding PLL configuration/verification, specifically on detecting PLL 'LOCK'.
1) What is the minimum delay time required for the PLL to settle assuming good
quality MCLK input? Is this characterized?
Regarding the SigmaStudio capture window contents below:
2) The data sheet indicates no register access should occur during PLL
configuration until 'LOCK' is verified. We then assume the 10ms "DELAY" must be
sufficient to insure PLL Lock. Is this true?
3) Near the end of the sequence a PLLCrlRegister read request appears to return
no data. Why is no data returned? Why is this read request issued at this point
in the sequence?
4) The final operation again reads the PLLCrlRegister. This time valid data is
returned indicated 'LOCK'. What is the purpose of this final PLLCrlRegister
read?
Thanks for your help.
-Phil
Phil Burkert
Staff FAE
Analog Devices
------------------------------------- Capture Window Contents -------------------
Block Write
Time: 9:51:36 - 511ms
IC: IC 1
Param Name: IC 1.Sample Rate Setting
Param Address: 0x40EB
Bytes: 1
Param Data:
0x7F
Block Write
Time: 9:51:36 - 521ms
IC: IC 1
Param Name: IC 1.DSP Run Register
Param Address: 0x40F6
Bytes: 1
Param Data:
0x00
Block Write
Time: 9:51:36 - 531ms
IC: IC 1
Param Name: IC 1.Clock Control Register
Param Address: 0x4000
Bytes: 1
Param Data:
0x0F
Block Write
Time: 9:51:36 - 531ms
IC: IC 1
Param Name: IC 1.PLL Control Register
Param Address: 0x4002
Bytes: 6
Param Data:
0x00, 0xFD, 0x00, 0x0C,
0x20, 0x03
DELAY
Time: 9:51:36 - 531ms
IC: IC 1
Param Name: IC 1.Delay
Bytes: 2
Param Data:
0x00, 0x64
Block Write
Time: 9:51:36 - 541ms
IC: IC 1
Param Name: IC 1.Serial Port Control Registers
Param Address: 0x4015
Bytes: 2
Param Data:
0x00, 0x00
Block Write
Time: 9:51:36 - 541ms
IC: IC 1
Param Name: IC 1.ALC Control Registers
Param Address: 0x4011
Bytes: 4
Param Data:
0x00, 0x00, 0x00, 0x00
Block Write
Time: 9:51:36 - 541ms
IC: IC 1
Param Name: IC 1.Microphone Control Register
Param Address: 0x4008
Bytes: 1
Param Data:
0x00
Block Write
Time: 9:51:36 - 541ms
IC: IC 1
Param Name: IC 1.Record Input Signal Path Registers
Param Address: 0x4009
Bytes: 8
Param Data:
0x00, 0x01, 0x05, 0x01,
0x05, 0x00, 0x00, 0x00
Block Write
Time: 9:51:36 - 541ms
IC: IC 1
Param Name: IC 1.ADC Control Registers
Param Address: 0x4019
Bytes: 3
Param Data:
0x13, 0x00, 0x00
Block Write
Time: 9:51:36 - 541ms
IC: IC 1
Param Name: IC 1.Playback Output Signal Path Registers
Param Address: 0x401C
Bytes: 14
Param Data:
0x21, 0x00, 0x41, 0x00,
0x00, 0x00, 0x01, 0xE7,
0xE7, 0x00, 0x00, 0xE5,
0x00, 0x03
Block Write
Time: 9:51:36 - 541ms
IC: IC 1
Param Name: IC 1.Converter Control Registers
Param Address: 0x4017
Bytes: 2
Param Data:
0x00, 0x00
Block Write
Time: 9:51:36 - 541ms
IC: IC 1
Param Name: IC 1.DAC Control Registers
Param Address: 0x402A
Bytes: 3
Param Data:
0x03, 0x00, 0x00
Block Write
Time: 9:51:36 - 541ms
IC: IC 1
Param Name: IC 1.Serial Port Pad Control Registers
Param Address: 0x402D
Bytes: 1
Param Data:
0xAA
Block Write
Time: 9:51:36 - 541ms
IC: IC 1
Param Name: IC 1.Communication Port Pad Control Registers
Param Address: 0x402F
Bytes: 2
Param Data:
0xAA, 0x00
Block Write
Time: 9:51:36 - 541ms
IC: IC 1
Param Name: IC 1.Jack Detect Pad Control Register
Param Address: 0x4031
Bytes: 1
Param Data:
0x08
Block Write
Time: 9:51:36 - 541ms
IC: IC 1
Param Name: IC 1.DSP ON Register
Param Address: 0x40F5
Bytes: 1
Param Data:
0x01
Block Write
Time: 9:51:36 - 541ms
IC: IC 1
Param Name: IC 1.CRC Registers
Param Address: 0x40C0
Bytes: 5
Param Data:
0x00, 0x00, 0x00, 0x00,
0x01
Block Write
Time: 9:51:36 - 541ms
IC: IC 1
Param Name: IC 1.GPIO Registers
Param Address: 0x40C6
Bytes: 4
Param Data:
0x00, 0x00, 0x00, 0x00
Block Write
Time: 9:51:36 - 551ms
IC: IC 1
Param Name: IC 1.Non Modulo Registers
Param Address: 0x40E9
Bytes: 2
Param Data:
0x0F, 0xFC
Block Write
Time: 9:51:36 - 551ms
IC: IC 1
Param Name: IC 1.Watchdog Registers
Param Address: 0x40D0
Bytes: 5
Param Data:
0x01, 0x00, 0x00, 0x00,
0x00
Block Write
Time: 9:51:36 - 551ms
IC: IC 1
Param Name: IC 1.Sampling Rate Setting Register
Param Address: 0x40EB
Bytes: 1
Param Data:
0x7F
Block Write
Time: 9:51:36 - 551ms
IC: IC 1
Param Name: IC 1.Routing Matrix Inputs Register
Param Address: 0x40F2
Bytes: 1
Param Data:
0x00
Block Write
Time: 9:51:36 - 551ms
IC: IC 1
Param Name: IC 1.Routing Matrix Outputs Register
Param Address: 0x40F3
Bytes: 1
Param Data:
0x00
Block Write
Time: 9:51:36 - 551ms
IC: IC 1
Param Name: IC 1.Serial Data Configuration Register
Param Address: 0x40F4
Bytes: 1
Param Data:
0x00
Block Write
Time: 9:51:36 - 551ms
IC: IC 1
Param Name: IC 1.DSP Slew Mode Register
Param Address: 0x40F7
Bytes: 1
Param Data:
0x00
Block Write
Time: 9:51:36 - 551ms
IC: IC 1
Param Name: IC 1.Serial Port Sample Rate Register
Param Address: 0x40F8
Bytes: 1
Param Data:
0x00
Block Write
Time: 9:51:36 - 551ms
IC: IC 1
Param Name: IC 1.Clock Enable Registers
Param Address: 0x40F9
Bytes: 2
Param Data:
0x7F, 0x03
Block Write
Time: 9:51:36 - 551ms
IC: IC 1
Param Name: Program Data
Param Address: 0x0800
Bytes: 930
Param Data:
0x00, 0x00, 0x00, 0x00, 0x00,
0xFE, 0xE0, 0x00, 0x00, 0x00,
0xFF, 0x34, 0x00, 0x00, 0x00,
0xFF, 0x2C, 0x00, 0x00, 0x00,
0xFF, 0x54, 0x00, 0x00, 0x00,
0xFF, 0x5C, 0x00, 0x00, 0x00,
0xFF, 0xF5, 0x08, 0x20, 0x00,
0xFF, 0x38, 0x00, 0x00, 0x00,
0xFF, 0x80, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
0xFE, 0xE8, 0x0C, 0x00, 0x00,
0xFE, 0x30, 0x00, 0xE2, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
0xFF, 0xE8, 0x07, 0x20, 0x08,
0x00, 0x00, 0x06, 0xA0, 0x00,
0xFF, 0xE0, 0x00, 0xC0, 0x00,
0xFF, 0x80, 0x07, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
0xFF, 0x00, 0x00, 0x00, 0x00,
0xFE, 0xC0, 0x22, 0x00, 0x27,
0x00, 0x00, 0x00, 0x00, 0x00,
0xFE, 0xE8, 0x1E, 0x00, 0x00,
0xFF, 0xE8, 0x01, 0x20, 0x00,
0xFF, 0xD8, 0x01, 0x03, 0x00,
0x00, 0x07, 0xC6, 0x00, 0x00,
0xFF, 0x08, 0x00, 0x00, 0x00,
0xFF, 0xF4, 0x00, 0x20, 0x00,
0xFF, 0xD8, 0x07, 0x02, 0x00,
0x00, 0x1D, 0x1F, 0x20, 0x00,
0x00, 0x0D, 0x08, 0x22, 0x00,
0x00, 0x00, 0x09, 0xA0, 0x00,
0xFF, 0xE5, 0x18, 0x22, 0x00,
0x00, 0x00, 0x08, 0xA0, 0x00,
0x00, 0x10, 0x00, 0xEA, 0x00,
0x00, 0x20, 0x00, 0xF2, 0x00,
0x00, 0x10, 0x00, 0xC0, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
0xFF, 0xEC, 0x01, 0x21, 0x00,
0x00, 0x04, 0x00, 0xA1, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
0xFF, 0xE5, 0x08, 0x22, 0x40,
0x00, 0x28, 0x00, 0xE2, 0x00,
0x00, 0x20, 0x00, 0xC0, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x2F, 0xFF, 0x20, 0x00,
0xFF, 0xE5, 0x08, 0x22, 0x00,
0x00, 0x30, 0x00, 0xE2, 0x00,
0x00, 0x30, 0x0A, 0x20, 0x00,
0x00, 0x00, 0x00, 0xE2, 0x00,
0x00, 0x5D, 0x1F, 0x20, 0x00,
0x00, 0x4D, 0x08, 0x22, 0x00,
0x00, 0x00, 0x0C, 0xA0, 0x00,
0xFF, 0xE5, 0x18, 0x22, 0x00,
0x00, 0x00, 0x0B, 0xA0, 0x00,
0x00, 0x50, 0x00, 0xEA, 0x00,
0x00, 0x60, 0x00, 0xF2, 0x00,
0x00, 0x50, 0x00, 0xC0, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
0xFF, 0xEC, 0x01, 0x21, 0x00,
0x00, 0x04, 0x00, 0xA1, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
0xFF, 0xE5, 0x08, 0x22, 0x40,
0x00, 0x28, 0x00, 0xE2, 0x00,
0x00, 0x60, 0x00, 0xC0, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x2F, 0xFF, 0x20, 0x00,
0xFF, 0xE5, 0x08, 0x22, 0x00,
0x00, 0x30, 0x00, 0xE2, 0x00,
0x00, 0x30, 0x0D, 0x20, 0x00,
0x00, 0x40, 0x00, 0xE2, 0x00,
0xFD, 0xA5, 0x08, 0x20, 0x00,
0x00, 0x68, 0x00, 0xE2, 0x00,
0xFD, 0xAD, 0x08, 0x20, 0x00,
0x00, 0x70, 0x00, 0xE2, 0x00,
0xFF, 0xE8, 0x0E, 0x20, 0x08,
0x00, 0x80, 0x0F, 0x20, 0x00,
0xFF, 0xFD, 0x1F, 0x22, 0x00,
0x00, 0x88, 0x00, 0xF2, 0x00,
0xFF, 0xED, 0x09, 0x32, 0x40,
0xFF, 0xF5, 0x08, 0x20, 0x27,
0x00, 0x78, 0x00, 0xE2, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
0xFF, 0xE8, 0x10, 0x20, 0x00,
0x00, 0xD8, 0x00, 0xE2, 0x00,
0x00, 0x05, 0x08, 0x20, 0x00,
0x00, 0xA0, 0x00, 0xE2, 0x00,
0x00, 0x45, 0x08, 0x20, 0x00,
0x00, 0xB8, 0x00, 0xE2, 0x00,
0x00, 0x6D, 0x08, 0x20, 0x00,
0x00, 0xA8, 0x00, 0xE2, 0x00,
0x00, 0x75, 0x08, 0x20, 0x00,
0x00, 0xC0, 0x00, 0xE2, 0x00,
0x00, 0x7D, 0x08, 0x20, 0x00,
0x00, 0xB0, 0x00, 0xE2, 0x00,
0x00, 0x7D, 0x08, 0x20, 0x00,
0x00, 0xC8, 0x00, 0xE2, 0x00,
0xFF, 0xF5, 0x08, 0x20, 0x00,
0x01, 0x30, 0x00, 0xE2, 0x00,
0x00, 0xD5, 0x08, 0x20, 0x00,
0x00, 0xDD, 0x08, 0x22, 0x48,
0x00, 0x00, 0x00, 0x00, 0x00,
0xFF, 0xED, 0x08, 0x20, 0x26,
0x01, 0x30, 0x00, 0xE2, 0x00,
0x00, 0xF5, 0x08, 0x20, 0x00,
0xFF, 0xED, 0x13, 0x22, 0x48,
0x00, 0xD5, 0x08, 0x20, 0x00,
0x01, 0x15, 0x08, 0x20, 0x25,
0x01, 0x18, 0x00, 0xE2, 0x00,
0x01, 0x05, 0x08, 0x20, 0x00,
0xFF, 0xED, 0x13, 0x22, 0x48,
0x00, 0xD5, 0x08, 0x20, 0x00,
0x01, 0x25, 0x08, 0x20, 0x25,
0x01, 0x28, 0x00, 0xE2, 0x00,
0x01, 0x3D, 0x08, 0x20, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
0x01, 0x48, 0x00, 0xF0, 0x00,
0x01, 0x4D, 0x08, 0x20, 0x00,
0xFF, 0xED, 0x13, 0x22, 0x48,
0x01, 0x35, 0x08, 0x20, 0x00,
0xFF, 0xF5, 0x08, 0x20, 0x25,
0x01, 0x30, 0x00, 0xE2, 0x00,
0x00, 0xD5, 0x08, 0x20, 0x00,
0x00, 0xD8, 0x00, 0xE2, 0x25,
0x00, 0xE5, 0x08, 0x20, 0x00,
0x00, 0xF5, 0x08, 0x22, 0x40,
0x01, 0x40, 0x00, 0xE2, 0x00,
0x00, 0xF5, 0x08, 0x20, 0x00,
0x01, 0x45, 0x14, 0x22, 0x00,
0x00, 0xF8, 0x00, 0xE2, 0x00,
0x01, 0x18, 0x00, 0xC0, 0x00,
0x00, 0x07, 0xFF, 0xA0, 0x00,
0x00, 0xF8, 0x00, 0xC0, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0xA7, 0xFF, 0x20, 0x80,
0x00, 0x90, 0x00, 0xE2, 0x00,
0x00, 0xBF, 0xFF, 0x40, 0x80,
0x00, 0x98, 0x00, 0xE4, 0x00,
0xFF, 0xED, 0x08, 0x20, 0x00,
0xFF, 0xEF, 0xFF, 0x22, 0x40,
0x01, 0x08, 0x00, 0xE2, 0x00,
0x01, 0x28, 0x00, 0xC0, 0x00,
0x00, 0x07, 0xFF, 0xA0, 0x00,
0x01, 0x08, 0x00, 0xC0, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0xA7, 0xFF, 0x20, 0x80,
0x00, 0x95, 0x08, 0x22, 0x00,
0x00, 0x90, 0x00, 0xE2, 0x00,
0x00, 0xBF, 0xFF, 0x40, 0x80,
0x00, 0x9D, 0x08, 0x44, 0x00,
0x00, 0x98, 0x00, 0xE4, 0x00,
0x00, 0xE5, 0x08, 0x20, 0x00,
0x01, 0x35, 0x08, 0x22, 0x40,
0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0xE8, 0x00, 0xF0, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
0x7F, 0xE0, 0x13, 0x20, 0x00,
0x7F, 0xE0, 0x12, 0x34, 0x00,
0x7F, 0xE8, 0x11, 0x22, 0x00,
0xFF, 0xD8, 0x12, 0x02, 0x00,
0xFF, 0xD8, 0x13, 0x12, 0x00,
0x00, 0x90, 0x12, 0x20, 0x00,
0x01, 0x50, 0x00, 0xE2, 0x00,
0x7F, 0xF0, 0x16, 0x20, 0x00,
0x7F, 0xF0, 0x15, 0x34, 0x00,
0x7F, 0xF8, 0x14, 0x22, 0x00,
0xFF, 0xD8, 0x15, 0x02, 0x00,
0xFF, 0xD8, 0x16, 0x12, 0x00,
0x00, 0x98, 0x15, 0x20, 0x00,
0x01, 0x58, 0x00, 0xE2, 0x00,
0x01, 0x55, 0x08, 0x20, 0x00,
0xFD, 0xB0, 0x00, 0xE2, 0x00,
0x01, 0x5D, 0x08, 0x20, 0x00,
0xFD, 0xB8, 0x00, 0xE2, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
0xFE, 0x30, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00,
0xFE, 0xC0, 0x0F, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00
Block Write
Time: 9:51:36 - 551ms
IC: IC 1
Param Name: Param
Param Address: 0x0000
Bytes: 92
Param Data:
0x00, 0x00, 0x0F, 0xFC,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0xFF,
0x00, 0x01, 0x55, 0x55,
0x00, 0x80, 0x00, 0x00,
0x00, 0x00, 0x00, 0xFF,
0x00, 0x01, 0x11, 0x11,
0x00, 0x80, 0x00, 0x00,
0x00, 0x80, 0x00, 0x00,
0x00, 0x05, 0x46, 0x4B,
0x00, 0x00, 0x00, 0x02,
0x00, 0x01, 0x9C, 0x86,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x01, 0x9C, 0x86,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00
Block Write
Time: 9:51:36 - 551ms
IC: IC 1
Param Name: Non Modulo RAM
Param Address: 0x1FFC
Bytes: 16
Param Data:
0x00, 0x7F, 0xF2, 0x59,
0x00, 0x00, 0x0D, 0xA7,
0x00, 0x7F, 0xF2, 0x59,
0x00, 0x00, 0x0D, 0xA7
Read Request
Time: 9:51:36 - 561ms
IC: IC 1
Param Name: IC 1.PLLCrlRegister
Param Address: 0x4002
Bytes: 6
Block Write
Time: 9:51:36 - 561ms
IC: IC 1
Param Name: IC 1.Sample Rate Setting
Param Address: 0x40EB
Bytes: 1
Param Data:
0x01
Block Write
Time: 9:51:36 - 561ms
IC: IC 1
Param Name: IC 1.DSP Run Register
Param Address: 0x40F6
Bytes: 1
Param Data:
0x01
Block Write
Time: 9:51:36 - 571ms
IC: IC 1
Param Name: IC 1.Dejitter Register Control
Param Address: 0x4036
Bytes: 1
Param Data:
0x00
Block Write
Time: 9:51:36 - 571ms
IC: IC 1
Param Name: IC 1.Dejitter Register Control
Param Address: 0x4036
Bytes: 1
Param Data:
0x03
Read Result
Time: 9:51:36 - 991ms
Param Name: IC 1.PLLCrlRegister
Param Address: 0x4002
Param Value: 0
Bytes: 6
Param Data:
0x00, 0xFD, 0x00, 0x0C,
0x20, 0x03