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EM6812F2TP24B 数据表(PDF) 43 Page - EM Microelectronic - MARIN SA

部件名 EM6812F2TP24B
功能描述  Ultra Low Power 8-bit FLASH Microcontroller
PDF  81 Pages
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制造商  EMMICRO [EM Microelectronic - MARIN SA]
网页  http://www.emmicroelectronic.com
标志 EMMICRO - EM Microelectronic - MARIN SA

EM6812F2TP24B 数据表(HTML) 43 Page - EM Microelectronic - MARIN SA

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EM6812
Copyright
© 2005, EM Microelectronic-Marin SA
43
www.emmicroelectronic.com
11.1.2 Overview
Figure 24 Port B IO and pull selection in normal mode
PBIn
PB [7:0]
Vss
Vbat
0
1
OE
OE
OE
RegInPB
RegOpenDrainPB
RegIOSelPB
RegOutPB
RegPullUpPB
RegPullDownPB
PBIn is input to
- Dual Port RAM input
- Serial Interface inputs
8
8
8
8
8
8
8
RegCfgPB
RegIntSel
Configuration registers for Port B
special functions, SPI and DPR
(may change output data and direction selection)
= ‘1’ during port B read pulse
or
in DPR mode while ExtCen=‘1’
or
in SPI mode (Inp 7,6,5)
or
Signal out selected (Inp 3:0)
= ‘0’ in all other cases
(normal mode, no read)



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