參數(shù)資料
型號(hào)： S1C63406F
元件分類： 微控制器/微處理器
英文描述： 4-BIT, MROM, 4.2 MHz, MICROCONTROLLER, PQFP128
封裝： PLASTIC, TQFP15-128
文件頁數(shù)： 116/144頁
文件大?。?/td> 1160K
代理商： S1C63406F
S1C63406 TECHNICAL MANUAL
EPSON
65
CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (Programmble Timer)
4.10.3.4 Interrupt function
The programmable timer can generate an interrupt due to an underflow.
An underflow of this 16 bit programmable timer sets the corresponding interrupt factor flag IPT1 (timer
1) to "1", and generates an interrupt. The interrupt can also be masked by setting the corresponding
interrupt mask register EIPT1 (timer 1). However, the interrupt factor flag is set to "1" by an underflow of
the corresponding timer regardless of the interrupt mask register setting.
4.10.3.5 Setting of TOUT output
The programmable timer can generate a TOUT signal due to an underflow of this 16 bit programmable
timer. The TOUT signal is generated by dividing the underflows in 1/2.
The TOUT signal can be output from the R12 terminal. Programmable clocks can be supplied to external
devices.
Figure 4.10.3.5.1 shows the configuration of the R12 port.
Data
bus
Register
PTOUT
Register
R12
TOUT
R12
(TOUT)
Fig. 4.10.3.5.1 Configuration of R12
The output of a TOUT signal is controlled by the PTOUT register. When "1" is written to the PTOUT
register, the TOUT signal is output from the R12 terminal and when "0" is written, the terminal goes high
(VDD) level. However, the data register R12 must always be "1".
Since the TOUT signal is generated asynchronously from the PTOUT register, a hazard within 1/2 cycle is
generated when the signal is turned ON and OFF by setting the register.
Figure 4.10.3.5.2 shows the output waveform of the TOUT signal.
R12 register
PTOUT register
TOUT output
Fix at "1"
"1"
"0"
Fig. 4.10.3.5.2 Output waveform of the TOUT signal
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