NEC PD750008 - Manual (Page 130)

110
µPD750008 USER'S MANUAL
Figure 5-29. Block Diagram of the Timer Counter (Channel 1)
Count register (8)
MPX
Timer operation start signal
8
8
8
From the clock generator
Internal bus
TM16
TM15
TM14
TM13
TM12
Comparator (8)
Modulo register (8)
TO enable flag
P21 output latch signal
Port 2 input/ output mode
Clear signal
T1
TMOD1
Bit 2 of PMGB
P21/PTO1
Output buffer
Reset
RESET IRQT1 clear signal
TOUT flip-flop
TM1
IRQT1 set signal
INTT1
PORT2.1
TOE1
CP
Match
8 8