Section 11 16-Bit Cycle Measurement Timer (TCM)
Rev. 1.00 Apr. 28, 2008 Page 321 of 994
REJ09B0452-0100
When the CMMS bit in TCMIER is set to 1, cycle measurement is performed only while the
TCMMCI signal is high (MCICTL in TCMCSR is 0). Figure 11.9 shows an example of timing in
cycle measurement when the CMMS bit is set to 1.
φ
TCMCYI
TCMMCI
TCMCNT
H'0006
M
0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 8 9 A B 0 1 2 3 4
M
H'0007
H'000B
L
5
TCMICR
Figure 11.9 Example of Timing in Cycle Measurement when the CMMS Bit is Set to 1
(3) Determination of External Event (TCMCYI) Stoppage
The timer overflow flag can be used to determine the external event (TCMCYI) stopped state.
Either of two sets of conditions represents the external event stopped state.
The external event can be considered to have stopped when a timer overflow is generated within
the period from the start of cycle measurement mode to detection of the first edge (rising or falling
as selected with the IEDG bit in TCMCR).
Figure 11.10 shows an example of the timing of the external event stopped state (1).
φ
TCMCYI
Start of measurement
TCMMDS
MAXOVF/
MINUDF
TCMCNT
H'0000
H'FFFF
H'0000
N
H'0000
H'0001
H'0002
OVF
Determined as external event stopped state
Figure 11.10 Example of Timing in External Event Stopped State (1)
Содержание H8S/2100 Series
Страница 2: ...Rev 1 00 Apr 28 2008 Page ii of xxvi...
Страница 54: ...Section 1 Overview Rev 1 00 Apr 28 2008 Page 28 of 994 REJ09B0452 0100...
Страница 92: ...Section 2 CPU Rev 1 00 Apr 28 2008 Page 66 of 994 REJ09B0452 0100...
Страница 158: ...Section 5 Interrupt Controller Rev 1 00 Apr 28 2008 Page 132 of 994 REJ09B0452 0100...
Страница 244: ...Section 8 8 Bit PWM Timer PWMU Rev 1 00 Apr 28 2008 Page 218 of 994 REJ09B0452 0100...
Страница 330: ...Section 10 16 Bit Timer Pulse Unit TPU Rev 1 00 Apr 28 2008 Page 304 of 994 REJ09B0452 0100...
Страница 354: ...Section 11 16 Bit Cycle Measurement Timer TCM Rev 1 00 Apr 28 2008 Page 328 of 994 REJ09B0452 0100...
Страница 380: ...Section 12 16 Bit Duty Period Measurement Timer TDP Rev 1 00 Apr 28 2008 Page 354 of 994 REJ09B0452 0100...
Страница 416: ...Section 13 8 Bit Timer TMR Rev 1 00 Apr 28 2008 Page 390 of 994 REJ09B0452 0100...
Страница 494: ...Section 15 Serial Communication Interface SCI Rev 1 00 Apr 28 2008 Page 468 of 994 REJ09B0452 0100...
Страница 612: ...Section 18 I 2 C Bus Interface IIC Rev 1 00 Apr 28 2008 Page 586 of 994 REJ09B0452 0100...
Страница 706: ...Section 20 LPC Interface LPC Rev 1 00 Apr 28 2008 Page 680 of 994 REJ09B0452 0100...
Страница 752: ...Section 21 FSI Interface Rev 1 00 Apr 28 2008 Page 726 of 994 REJ09B0452 0100...
Страница 774: ...Section 23 RAM Rev 1 00 Apr 28 2008 Page 748 of 994 REJ09B0452 0100...
Страница 1008: ...Section 28 Electrical Characteristics Rev 1 00 Apr 28 2008 Page 982 of 994 REJ09B0452 0100...
Страница 1020: ...Rev 1 00 Apr 28 2008 Page 994 of 994 REJ09B0452 0100...
Страница 1023: ......
Страница 1024: ...H8S 2117R Group Hardware Manual...