6.10 Carrier frequency generator
SD6830
One of seven carrier frequencies can be selected and transmitted through the C/REM pin by
programming the register Z and port C.
Fosc/8 (1/2 duty )
Fosc/8 (1/4 duty )
MUX
Fosc/11 (4/11 duty )
Vdd ( No carrier )
3
Register Z output
Fsys
(Fsys/12, 1/2 duty)
(Fsys/12, 1/3 duty)
(Fsys/12, 1/4 duty)
(Fsys/8, 1/2 duty)
(Fsys/8, 1/4 duty)
VSS
Figure 6-3 PORT C/REM and Carrier Output
KSI-W002-000
11