UPD789304 Datasheet, PDF (20/64 Pages) NEC – 8-BIT SINGLE-CHIP MICROCONTROLLER

µPD789304, 789306, 789314, 789316
Figure 5-5. Block Diagram of Output Controller (Timer 40)
TOE40 RMC40
NRZ40
P32
output latch
PM32
F/F
Carrier generator mode
TO40/P32/
INTP2
Carrier clock
(during carrier generator mode)
or timer 40 output signal
(during mode other than carrier
generator mode)
Figure 5-6. Block Diagram of Watch Timer (WT)
fCLK/2⁷
fXT
Clear
fW
9-bit prescaler
fW fW fW fW fW
fW
2⁴ 2⁵ 2⁶ 2⁷ 2⁸
2⁹
5-bit counter
Clear
INTWT
INTWTI
Remark fCLK: fX or fCC
WTM7 WTM6 WTM5 WTM4 WTM1 WTM0
Watch timer mode
control register (WTM)
Internal bus
20
Data Sheet U14384EJ1V0DS