參數(shù)資料
型號: S1C621A0F0A0100
元件分類: 微控制器/微處理器
英文描述: MICROCONTROLLER, PQFP80
封裝: QFP-80
文件頁數(shù): 128/161頁
文件大小: 1037K
代理商: S1C621A0F0A0100
I-44
EPSON
S1C621A0 TECHNICAL HARDWARE
CHAPTER 3: PERIPHERAL CIRCUITS (Remote LED Control)
If the REM circuit is restarted from OFF state with REMC
= 0, the timing of the
τ-waveform rises one carrier before
the set division ratio 2. (See Figures 3.9.9 and 3.9.10.)
Carrier
τ-waveform
REMC
Fig. 3.9.10
REM Circuit
Restart
Timing 2
REM Interrupt Counter and REM Interrupt Control
The REM circuit can make an interrupt request to inform
the software of how REM operations are progressing.
Interrupt timing is set by writing data into the count
setting register (0F8H, D3–D0) of the REM interrupt
counter (RIC).
The time until an interrupt request occurs (
tRI) is given
by:
tRI = tRIC + (1 ± 1 instruction cycle)
Where
tRIC is the time set by the RIC register (n
× τ). The
relation between the RIC register and
tRIC is:
tRIC = (RIC3
× 23 + RIC2 × 22 + RIC1 × 2 + RIC0) × τ
As with the REMOUT time circuit, the REM interrupt
counter starts counting synchronously with the rising
edge of the
τ-waveform. The interrupt control circuit
generates a REM interrupt synchronously with the
τ-wave
when the count is completed. (See Figure 3.9.11.)
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