D12320VF25IV Datasheet, PDF (454/1304 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 9 I/O Ports
9.12 Port E
9.12.1 Overview
Port E is an 8-bit I/O port. Port E has a data bus I/O function, and the pin functions change
according to the operating mode and whether 8-bit or 16-bit bus mode is selected.
Port E has a built-in MOS input pull-up function that can be controlled by software.
Figure 9.19 shows the port E pin configuration.
Port E
Port E pins
Pin functions in modes 4 to 6
PE₇ / D₇
PE₆ / D₆
PE₅ / D₅
PE₄ / D₄
PE₃ / D₃
PE₂ / D₂
PE₁ / D₁
PE₀ / D₀
PE₇ (I/O) / D₇ (I/O)
PE₆ (I/O) / D₆ (I/O)
PE₅ (I/O) / D₅ (I/O)
PE₄ (I/O) / D₄ (I/O)
PE3 (I/O) / D₃ (I/O)
PE₂ (I/O) / D₂ (I/O)
PE₁ (I/O) / D₁ (I/O)
PE₀ (I/O) / D₀ (I/O)
Pin functions in mode 7
PE₇ (I/O)
PE₆ (I/O)
PE₅ (I/O)
PE₄ (I/O)
PE₃ (I/O)
PE₂ (I/O)
PE₁ (I/O)
PE₀ (I/O)
Figure 9.19 Port E Pin Functions
Rev.6.00 Sep. 27, 2007 Page 422 of 1268
REJ09B0220-0600