Fujitsu MB90390 Series Hardware Manual page 253

■ Block Diagram of 16-bit Reload Timer
Figure 14.1-1 shows a block diagram of the 16-bit reload timer.
16
8
16
2
3
CHAPTER 14 16-BIT RELOAD TIMER (WITH EVENT COUNT FUNCTION)
Figure 14.1-1 Block Diagram of 16-bit Reload Timer
16-bit reload register
16-bit down-counter
2
Clock selector
EXCK
φ φ φ
Prescaler
1 3 5
2 2 2
clear
Peripheral clock
Reload
UF
OUT
GATE
CTL.
CSL1
CSL0
Re-trigger
IN CTL
3
MOD2
MOD1
MOD0
RELD
OUTE
OUTL
INTE
UF
Clear
CNTE
2
EI OS CLR
TRG
Port (TIN)
Output enable
Port (TOT)
UART baud rate (ch.0)
A/D converter (ch.1)
IRQ
225