CHAPTER 9 TIMER/COUNTER FUNCTION (REAL-TIME PULSE UNIT)
363
User’s Manual U14492EJ3V0UD
Figure 9-67. 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)
f
CLK
CNT[TB0]
CNT[TB1]
CTC
CASC
Note
[TB1]
FFFBH
FFFCH
FFFDH
FFFEH
FFFFH
0000H
0001H
0002H
0003H
0004H
1234H
1235H
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
CLK
: Base clock
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
Содержание V850E/IA1 mPD703116
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