Configuration Of Timebase Timer - Fujitsu F2MC-8FX Hardware Manual

CHAPTER 10 TIMEBASE TIMER
10.2

Configuration of Timebase Timer

The timebase timer consists of the following blocks:
• Timebase timer counter
• Counter clear circuit
• Interval timer selector
• Timebase timer control register (TBTC)
Block Diagram of Timebase Timer
Timebase timer counter
F
CH
1
x 2 x 2
divided
by 2
Watchdog timer clear
Resets, stops Main clock
Timebase timer
interrupt
F : Main clock
CH
158
Figure 10.2-1 Block Diagram of Timebase Timer
2 3 4 5 6 7
x 2 x 2 x 2 x 2 x 2 x 2
Counter clear
TBIF TBIE
Timebase timer control register (TBTC)
To prescaler
To clock control block
(Main PLL oscillation stabilization wait)
8 9 10 11 12 13
x 2 x 2 x 2 x 2 x 2 x 2
Counter
clear circuit
- -
To watchdog timer
14 15 16 17 18 19
x 2 x 2 x 2 x 2 x 2 x 2
18
2 2/F
x
CH
To LCD controller
13
2 2/F
x
CH
To clock control block
oscillation stabilization
wait time selector
Interval timer
selector
- TBC1 TBC0
20 21 22
x 2 x 2
15
to 2 2/F
x
CH
to 2/F
CH
TCLR