Cascade Connection; Operation - Panasonic F77G User Manual

6-10

Cascade Connection

6-10-1 Operation

Cascading timers 0 and 1 form a 16-bit timer.
8-bit Timer Cascade Connection Operation (Timer 0 + Timer 1)
Timer 0 and timer 1 are combined to be a 16-bit timer. Cascading timer is operated at clock source of timer
0 which is lower 8 bits.
Table 6-10-1 Timer Functions at Cascade Connection
Interrupt source
Timer operation
Event count
Timer pulse output
PWM output
Synchronous output
Serial Interface transfer
clock output
Pulse width measurement
Remote control carrier
output
Clock source
fosc : Machine clock (High speed oscillation )
fx : Machine clock (Low speed oscillation )
fs : System clock
[ Chapter 2 2-5 Clock Switching ]
Timer 0 + Timer 1
(16 Bit)
TM1IRQ
(TM0IO input)
(TM1IO output)
-
-
-
fosc
fosc/4
fosc/16
fosc/32
fosc/64
fs/2
fs/4
fx
TM0IO input
Cascade Connection
Chapter 6 8-bit Timers
VI - 39