AD9548/PCBZ Analog Devices Inc, AD9548/PCBZ Datasheet - Page 70

• Manufacturer Part Number: AD9548/PCBZ
• Description: Clock Generator Evaluation Board
• Manufacturer: Analog Devices Inc

Specifications of AD9548/PCBZ

• Silicon Manufacturer: Analog Devices
• Application Sub Type: Network Clock Generator/Synchronizer
• Kit Application Type: Clock & Timing
• Silicon Core Number: AD9548
• Kit Contents: Board
• Main Purpose: Timing, Clock Generator
• Embedded: No
• Utilized Ic / Part: AD9548
• Primary Attributes: 62.5 ~ 450 MHz Output Frequency
• Secondary Attributes: SPI and I2C Compatible Control Port
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD9548
REGISTER MAP BIT DESCRIPTIONS
SERIAL PORT CONFIGURATION (REGISTER 0000 TO REGISTER 0005)
Table 36. Serial Configuration
Address
0000
Table 37. Reserved Register
Address
0001
Table 38. Silicon Revision Level (Read-Only)
Address
0002
Table 39. Device ID (Read Only)
Address
0003
Table 40. Register Readback Control
Address
0004
Table 41. Soft I/O Update
Address
0005
Bits
[7]
[6]
[5]
[4]
[0]
Bits
[7:0]
Bits
[7:1]
0
Bits
[7:1]
0
Bit Name
Unidirectional
LSB first
Soft reset
Long instruction
Unused
Bits
[7:0]
Bit Name
Reserved
Bit Name
Unused
Read buffer register
Bit Name
Unused
I/O update
Bits
[7:0]
Description
Select SPI port SDO pin operating mode.
0 (default) = 3-wire.
1 = 4-wire (SDO pin enabled).
Bit order for SPI port.
0 (default) = most significant bit and byte first.
1 = least significant bit and byte first.
Device reset (invokes an EEPROM download if M[7:3] ≠ 0).
0 (default) = normal operation.
1 = reset.
16-bit mode (the only mode supported by the device). This bit is read only and reads back as Logic
1.
Bit Name
Reserved
Default = 0x48 = 0b01001000
Description
For buffered registers, serial port readback reads from actual (active) registers instead
of from the buffer.
0 (default) = reads values currently applied to the internal logic of the device.
1 = reads buffered values that take effect on the next assertion of the I/O update.
Description
Writing a 1 to this bit transfers the data in the serial I/O buffer registers to the
internal control registers of the device. This is an autoclearing bit.
Description
Bit Name
Unused
Rev. A | Page 70 of 112
Description
Default = 0xC5 = 0b11000101
Description