NEC UPD703116 User Manual page 356

f
CLK
CTC
Note
CASC [TB1]
CNT[TB0]
CNT[TB1]
Note If, in the 32-bit mode, CASC (CNT = MAX. for TM20) is input to TM21 and the CTC rising edge is
detected, TM21 performs count operation.
Remarks 1. f : Base clock
CLK
2. CASC: TM21 count signal input in 32-bit mode
CNT: Count value of timer 2
CTC: TM21 count signal input in 32-bit mode
TB0: Count value of TM20
TB1: Count value of TM21
3. n = 0, 1
356
CHAPTER 9 TIMER/COUNTER FUNCTION
Figure 9-70. Timing in 32-Bit Cascade Operation Mode
(When TCRE0 Register's UDSEn1, UDSEn0 Bits = 00B, ECEEn Bit =
0, ECREn Bit = 0, CLREn Bit = 0, OSTEn Bit = 0, CEEn Bit = 1,
CASE1 Bit = 1)
FFFBH FFFCH FFFDH
1234H
User's Manual U14492EJ5V0UD
FFFEH FFFFH 0000H 0001H 0002H 0003H 0004H
1235H