SI5316-EVB Datasheet, PDF (9/26 Pages) Silicon Laboratories – The Si531x/2x Any-Frequency Precision Clocks

Si531x-EVB Si532x-EVB
J14 is a 10 pin ribbon header that provides an external path to monitor the status pins.
Table 4. Status Header, J14
J14
J14.1
J14.3
J14.5
J14.7
J14.9
Pin
LOL
C1B
C2B
CS_CA
DUT_PWR
Comment
clock active
J17 is a 10 pin ribbon header that provides an external path to serially communicate with the Any-Frequency
Precision Clock.
To control the Any-Frequency part that is on the Evaluation Board from an external serial port, open the Register
Programmer, connect to the Evaluation Board, go to Options in the top toolbar, and select “Switch To External
Control Mode”.
To control an Any-Frequency part that is on an external target board from the Evaluation Board using its serial port,
tie pin 9 of J17 low so that the on-board Any-Frequency part is constantly being held in reset. This will force it to
disable its SDA_SDO output buffer. This will work only for Evaluation Boards that have Rev C or higher
Any-Frequency parts.
Table 5. External Serial Port Connector, J17
J17
J17.1
J17.3
J17.5
J17.7
J17.9
Pin
SDA_SDO
SCL_SCLK
SDI
A2_SS
DUT_RST_B
Comment
not reset
J9 is a three-pin by twenty header that is used to establish input levels for the pin controlled two and three-level
inputs using jumper plugs. It also provides a means of externally driving the two and three-level input signals.
J9
J9.1B
J9.2B
J9.3B
J9.4B
J9.5B
J9.6B
J9.7B
J9.8B
J9.9B
J9.10B
Table 6. Two and Three Level Input Jumper Headers, J9
Pin
AUTOSEL
CMODE
A0_FRQSEL0
A1_FRQSEL1
A2_SS_FRQSEL2
SDI_FRQSEL3
SCL_SCLK_BWSEL0
SDA_SDO_BWSEL1
CS_CA
FRQTBL
J9
J9.11B
J9.12B
J9.13B
J9.14B
J9.15B
J9.16B
J9.17B
J9.18B
J9.19B
J9.20B
Pin
—
SFOUT0
SFOUT1
RATE0
RATE1
DBL2_BY
—
INC
DEC
—
Comment
not used
not used
not used
J12 is used to monitor the Any-Frequency Precision Clock voltage.
J1 and J2 are edge mount SMA connectors that are used, if so configured, to supply an external single-ended or
differential reference oscillator.
Rev. 0.6
9