GS4901B_09 Datasheet, PDF (64/102 Pages) Gennum Corporation – SD Clock and Timing Generator with GENLOCK

Application Host
SCLK
CS1
SDOUT
GS4911B/GS4910B
SCLK
CS
SDIN
SDOUT
CS2
SDIN
GS4911B/GS4910B
SCLK
CS
SDIN
SDOUT
Figure 3-11: GSPI Application Interface Connection
All read or write access to the GS4901B/GS4900B is initiated and terminated by the host
processor. Each access always begins with a 16-bit command word on SDIN indicating
the address of the register of interest. This is followed by a 16-bit data word on SDIN in
write mode, or a 16-bit data word on SDOUT in read mode.
GS4901B/GS4900B SD Clock and Timing Generator
with GENLOCK
Data Sheet
37703 - 4
December 2009
64 of 102