參數(shù)資料
型號(hào)： S1C60A13F
元件分類： 微控制器/微處理器
英文描述： 4-BIT, MROM, 1.2 MHz, MICROCONTROLLER, PQFP80
封裝： PLASTIC, QFP14-80
文件頁(yè)數(shù)： 26/104頁(yè)
文件大?。?/td> 850K
代理商： S1C60A13F
20
EPSON
S1C60N13 TECHNICAL MANUAL
CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (Input Ports)
4.4 Input Ports (K00–K03, K10)
4.4.1 Configuration of input ports
The S1C60N13 Series has five bits (4 bits + 1 bit) of general-purpose input ports. Each of the input port
terminals (K00–K03, K10) provides internal pull-down resistor. Pull-down resistor can be selected for
each bit with the mask option.
Figure 4.4.1.1 shows the configuration of input port.
Interrupt
request
VDD
VSS
Data
bus
K
Address
Mask
option
Fig. 4.4.1.1 Configuration of input port
Selection of "With pull-down resistor" with the mask option suits input from the push switch, key matrix,
and so forth. When "Gate direct" is selected, the port can be used for slide switch input and interfacing
with other LSIs.
Further, The input port terminal K02 and K03 are used as the input terminals for the event counter. (See
Section 4.12, "Event Counter", for details.)
4.4.2 Input comparison registers and interrupt function
All five bits of the input ports (K00–K03, K10) provide the interrupt function. The conditions for issuing
an interrupt can be set by the software. Further, whether to mask the interrupt function can be selected
individually for all five bits by the software.
Figure 4.4.2.1 shows the configuration of the input interrupt circuit.
Data
bus
K
Address
Input comparison
register (KCP)
Address
Interrupt factor
flag (IK)
Noise
rejector
Address
Interrupt mask
register (EIK)
Interrupt request
Mask option
One for each terminal series
Fig. 4.4.2.1 Input interrupt circuit configuration
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PDF描述
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