
Rev.1.0, Feb.12.2004, page 17 of 29
SDATA
STD2(Upper data) STD1(Lower data) address(address)
SCK
CS
f
SCK
D9D8 D11D10 D13D12 D15D14 D1D0 D3D2 D5D4 D7D6 D0 D2D1 D4D3 D6D5 D7
t
INT1
t
INT2
t
su
t
ho
Latches SDATA
at SCK rising edge
Data is determined
at CS rising edge
Figure 8 Serial Interface Timing Specifications Item Min Max
fSCK — 5 MHz
tINT1,2 50 ns —
tsu 50 ns —
tho 50 ns —
Notes: 1. 3 byte continuous communications.
2. Input SCK with 24 clock when CS is Low.
3. It becomes invalid when data communications are stopped on the way.
4. Data becomes a default with hardware reset.
5. Input more than double frequency of SCK to the CLK_in when transfer
the serial data.
H’00
:
:
H’EF
Data at timing generator part
H’F0
:
:
H’FF
Data at CDS part