Panasonic KX-F1200 Service Manual And Technical Manual page 100

r,_A-(- 1 zuu j
2-11. REALIIM_- L;LU(JK
This is Clock IC. And it is backuppuu by lll.tJlulil bd[tcly.
This IC reads and writes the data by serial interface.
The serial interface signal is produced in the software, and uutput Iro_ I/L) purl. of CPU (iC 401).
These timings are shown below.
CS
SCK
SlO
J
Read Timing
about 60ps
Read c'o'mmand
64
I.IIII _--
Clock • Calender data
L
Write Timing
CS
SCK
SlO
J
_1 19
L( L ( L( L ( l_l LI ......
64
_(, iolo11(x x lxlx ( I
Write command
(111( t--
Clock • Calender data
L
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