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H8S/2218 Scheda tecnica(PDF) 305 Page - Renesas Technology Corp

Il numero della parte H8S/2218
Spiegazioni elettronici  16-Bit Single-Chip Microcomputer H8S Family/H8S/2200 Series
PDF  750 Pages
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Produttore elettronici  RENESAS [Renesas Technology Corp]
Homepage  http://www.renesas.com
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H8S/2218 Scheda tecnica(HTML) 305 Page - Renesas Technology Corp

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Section 8 I/O Ports
Rev.6.00 Jun. 03, 2008 Page 257 of 698
REJ09B0074-0600
8.10.4
Port E Pull-Up MOS Control Register (PEPCR)
PEPCR controls the on/off state of the port E input pull-up MOS.
Bit
Bit Name Initial Value
R/W
Description
7
6
5
4
3
2
1
0
PE7PCR
PE6PCR
PE5PCR
PE4PCR
PE3PCR
PE2PCR
PE1PCR
PE0PCR
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
When a pin functions as an input port, setting the
corresponding bit to 1 turns on the input pull-up MOS for
that pin.
8.10.5
Pin Functions
Pin Functions of H8S/2218 Group
Port E pins also function as data bus (D7 to D0) I/O pins. The correspondence between the register
specification and the pin function is shown below.
Table 8.64
PE7 Pin Function
Operating Mode
Modes 4 to 6
Mode 7
Bus Mode
8-bit bus mode
16-bit bus mode
⎯
PE7DDR
0
1
⎯
0
1
Pin Function
PE7
input pin
PE7
output pin
D7
input/output pin
PE7
input pin
PE7
output pin
Table 8.65
PE6 Pin Function
Operating Mode
Modes 4 to 6
Mode 7
Bus Mode
8-bit bus mode
16-bit bus mode
⎯
PE6DDR
0
1
⎯
0
1
Pin Function
PE6
input pin
PE6
output pin
D6
input/output pin
PE6
input pin
PE6
output pin



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