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HD6433636SW Folha de dados(PDF) 172 Page - Renesas Technology Corp

Nome de Peças HD6433636SW
Descrição Electrónicos  8-Bit Microcomputer
PDF  418 Pages
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Fabricante Electrônico  RENESAS [Renesas Technology Corp]
Página de início  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD6433636SW Folha de dados(HTML) 172 Page - Renesas Technology Corp

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8.11
Port E
8.11.1
Overview
Port E is a 2-bit I/O port, configured as shown in figure 8.10.
PE
PE
3
2
Port E
Figure 8.10 Port E Pin Configuration
8.11.2
Register Configuration and Description
Table 8.27 shows the port E register configuration.
Table 8.27
Port E Registers
Name
Abbrev.
R/W
Initial Value
Address
Port data register E
PDRE
R/W
H'F0
H'FFD3
Port control register E
PCRE
W
H'F0
H'FFE3
Port Data Register E (PDRE)
Bit
76543210
————
PE
3
PE
2
——
Initial value
11110000
Read/Write
————
R/W
R/W
——
PDRE is a 2-bit register that stores data for port E pins PE
3 and PE2. If port E is read while PCRE
bits are set to 1, the values stored in PDRE are directly read, regardless of the actual pin states. If
port E is read while PCRE bits are cleared to 0, the pin states are read.
Upon reset, PDRE is initialized to H'F0.



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