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3819 Datasheet(PDF) 138 Page - Renesas Technology Corp

Part # 3819
Description  8-BIT SINGLE-CHIP MICROCOMPUTER
PDF  218 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

3819 Datasheet(HTML) 138 Page - Renesas Technology Corp

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124
3819 Group USER’S MANUAL
2. APPLICATION
MITSUBISHI MICROCOMPUTER
3819 Group
2.5 FLD controller
Fig. 2.5.22 Setting of related registers (2) [FLD automatic display and Key-scan using digit pin]
0
Set ports PA7–PA0 to ordinary port
PASPR
Port PA segment/port switch register (Address:3516)
00 0
0
00
0
Set the FLD digit interrupt request bit to “0”
IREQ2
Interrupt request register 2 (Address:3D16)
0
FLD digit interrupt : Enabled
ICON2
Interrupt control register 2 (Address:3F16)
0 1
Set ports P27–P24 to the input mode
P2D
Port P2 direction register (Address:0516)
0
00
0
Start displaying
FLDM2
FLDC mode register 2 (Address:3716)
00
1
1
0
00
0



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