參數(shù)資料
型號: S1C60L02
元件分類: 微控制器/微處理器
英文描述: 4-BIT, MROM, 0.08 MHz, MICROCONTROLLER, PQFP60
文件頁數(shù): 22/102頁
文件大小: 674K
代理商: S1C60L02
18
EPSON
S1C60N02 TECHNICAL MANUAL
CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (Input Ports)
Input Ports (K00–K03)
The S1C60N02 Series has a general-purpose input (4 bits).
Each of the input port pins (K00–K03) has an internal pull-
down resistance. The pull-down resistance can be selected
for each bit with the mask option.
Figure 4.3.1 shows the configuration of input port.
Kxx
VSS
Mask option
Address
VDD
Interrupt
request
Data
bus
Selecting "pull-down resistance enabled" with the mask
option allows input from a push button, key matrix, and so
forth. When "pull-down resistance disabled" is selected, the
port can be used for slide switch input and interfacing with
other LSIs.
4.3
Configuration of
input ports
Fig. 4.3.1
Configuration of input port
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