D12320VF25IV Datasheet, PDF (413/1304 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

9.6 Port 5
Section 9 I/O Ports
9.6.1 Overview
Port 5 is a 4-bit I/O port. Port 5 pins also function as SCI I/O pins (TxD₂, RxD₂, and SCK₂), the
A/D converter input pin (ADTRG), interrupt input pins (IRQ₄ to IRQ₇), and bus control signal I/O
pins (WAIT and BREQO). The pin functions can be switched by means of settings in PFCR2 and
SYSCR. IRQ₄ to IRQ₇ only are Schmitt-triggered inputs. Figure 9.5 shows the port 5 pin
configuration.
Port 5 pins
Port 5
P5₃ (I/O) / ADTRG (input) / IRQ₇ (input) / WAIT (input) / BREQO (output)
P5₂ (I/O) / SCK₂ (I/O) / IRQ₆ (input)
P5₁ (I/O) / RxD₂ (input) / IRQ₅ (input)
P5₀ (I/O) / TxD₂ (output) /IRQ₄ (input)
Pin functions in modes 4 to 6
P5₃ (I/O) / ADTRG (input) / IRQ₇ (input) / WAIT (input) / BREQO (output)
P5₂ (I/O) / SCK₂ (I/O) / IRQ₆ (input)
P5₁ (I/O) / RxD₂ (input) / IRQ₅ (input)
P5₀ (I/O) / TxD₂ (output) / IRQ₄ (input)
Pin functions in mode 7
P5₃ (I/O) / ADTRG (input) / IRQ₇ (input)
P5₂ (I/O) / SCK₂ (I/O) / IRQ₆ (input)
P5₁ (I/O) / RxD₂ (input) / IRQ₅ (input)
P5₀ (I/O) / TxD₂ (output) / IRQ₄ (input)
Figure 9.5 Port 5 Pin Functions
Rev.6.00 Sep. 27, 2007 Page 381 of 1268
REJ09B0220-0600