NEC UPD703116 User Manual page 353

(2) Basic operation of timer 2
Figures 9-67 to 9-70 show the basic operation of timer 2.
f
CLK
Note 1
OSTEn bit
Note 1
CEEn bit
CT
CNT FFFDH (Stop)
Note 2
R
INTTM2n (output)
CNT = 0
Notes 1. Bits OSTE, CEE of TCRE0 register
2. Can control TM20/TM21 clear by sub-channel 0/5 compare match or count direction.
Remarks 1. f : Base clock
CLK
2. CNT: Count value of timer 2
CT: TM2n count signal input in 16-bit mode
R: Compare match signal input (sub-channel 0/5)
3. n = 0, 1
CHAPTER 9 TIMER/COUNTER FUNCTION
Figure 9-67. Timer 2 Up-Count Timing
(When TCRE0 Register's UDSEn1, UDSEn0 Bits = 00B,
ECEEn Bit = 0, ECREn Bit = 0, CLREn Bit = 0, CASE1 Bit = 0)
FFFEH FFFFH
User's Manual U14492EJ5V0UD
0000H 1234H 1235H
0000H (Stop)
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