參數(shù)資料
型號(hào)： S1C6N3B0D0A0100
元件分類(lèi)： 微控制器/微處理器
英文描述： MICROCONTROLLER, UUC54
封裝： DIE-54
文件頁(yè)數(shù)： 22/79頁(yè)
文件大?。?/td> 606K
代理商： S1C6N3B0D0A0100
S1C6N3B0 TECHNICAL MANUAL
EPSON
21
CHAPTER 4: PERIPHERAL CIARCUITS AND OPERATION (Output Ports)
4.4.3 Special output
Figure 4.4.3.1 shows the structure of output ports R00–R03.
As shown in the previous section, the R00 terminal and the R01 terminal can be used as special output
ports by selecting with mask option.
Register R03
Data
bus
R03
Register R02
R02
Register R01
R01
R00
BUZZER
FOUT
Register R00
Address 0F3H
Mask option
Fig. 4.4.3.1 Structure of output port R00–R03
FOUT (R00)
When the output port R00 is set as the FOUT output port, the R00 will output the fosc (CPU operating
clock frequency) clock or the clock that is generated by dividing the fosc clock. The clock frequency can
be selected individually for F1–F4, from among 5 types by mask option; one among F1–F4 is selected by
software (XFOUT register) and used.
The types of frequency which can be selected are shown in Table 4.4.3.1.
Table 4.4.3.1 FOUT clock frequency
Setting value
1
2
3
4
5
F1 (XFOUT)=(0, 0)
f/128
f/64
f/32
f/16
f/8
Clock frequency (Hz)
F2 (XFOUT)=(0, 1)
f/64
f/32
f/16
f/8
f/4
F3 (XFOUT)=(1, 0)
f/32
f/16
f/8
f/4
f/2
F4 (XFOUT)=(1, 1)
f/16
f/8
f/4
f/2
f/1
S1C6N3B0:
S1C6A3B0:
f=fOSC
f=fDVIN
32 kHz or 65 kHz Typ.
fDVIN=fOSC/12 (ceramic oscillation) or fOSC/6 (CR oscillation)
When "0" is written to the FOUT (R00) register, the FOUT (R00) terminal outputs the clock with the
specified frequency. When "1" is written, the FOUT terminal goes high.
Figure 4.4.3.2 shows the output waveform of the FOUT output.
R00 register
FOUT output waveform
10
1
Fig. 4.4.3.2 FOUT output waveform
Note: A hazard may occur when the FOUT signal is turned on or off.
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