HD6473837H Datasheet, PDF (180/562 Pages) Renesas Technology Corp – Hardware Manual

8.8 Port 7
8.8.1 Overview
Port 7 is an 8-bit I/O port, configured as shown in figure 8.7.
Port 7
P7 ₇ /SEG ₂₄
P7 ₆ /SEG ₂₃
P7 ₅ /SEG ₂₂
P7 ₄ /SEG ₂₁
P7 ₃ /SEG ₂₀
P7 ₂ /SEG ₁₉
P7 ₁ /SEG ₁₈
P7 ₀ /SEG ₁₇
Figure 8.7 Port 7 Pin Configuration
8.8.2 Register Configuration and Description
Table 8.20 shows the port 7 register configuration.
Table 8.20 Port 7 Registers
Name
Port data register 7
Port control register 7
Abbrev.
R/W
PDR7
R/W
PCR7
W
Initial Value
H'00
H'00
Address
H'FFDA
H'FFEA
Port Data Register 7 (PDR7)
Bit
Initial value
Read/Write
7
P7₇
0
R/W
6
P7₆
0
R/W
5
P7₅
0
R/W
4
P7₄
0
R/W
3
P7₃
0
R/W
2
P7₂
0
R/W
1
P7₁
0
R/W
0
P7₀
0
R/W
PDR7 is an 8-bit register that stores data for port 7 pins P7₇ to P7₀. If port 7 is read while PCR7
bits are set to 1, the values stored in PDR7 are read, regardless of the actual pin states. If port 7 is
read while PCR7 bits are cleared to 0, the pin states are read.
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