D12320VF25IV Datasheet, PDF (420/1304 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 9 I/O Ports
9.7 Port 6
9.7.1 Overview
Port 6 is an 8-bit I/O port. Port 6 pins also function as interrupt input pins (IRQ₀ to IRQ₃),
DMAC* I/O pins (DREQ₀, TEND₀, DREQ₁, and TEND₁), and bus control output pins (CS₄ to
CS₇). The functions of pins P6₅ to P6₂ are the same in all operating modes, while the functions of
pins P6₇, P6₆, P6₁, and P6₀ change according to the operating mode. Switching of CS₄ to CS₇
output can be performed by setting PFCR2. Pins P6₇ to P6₄ are Schmitt-triggered inputs. Figure
9.6 shows the port 6 pin configuration.
Note: * The DMAC is not supported in the H8S/2321.
Port 6 pins
Pin functions in modes 4 to 6
Port 6
P6₇ / IRQ₃ / CS₇
P6₆ / IRQ₂ / CS₆
P6₅ / IRQ₁
P6₄ / IRQ₀
P6₃ / TEND₁
P6₂ / DREQ₁
P6₁ / TEND₀ / CS₅
P6₀ / DREQ₀ / CS₄
P6₇ (I/O) / IRQ₃ (input) / CS7 (output)
P6₆ (I/O) / IRQ₂ (input) / CS6 (output)
P6₅ (I/O) / IRQ₁ (input)
P6₄ (I/O) / IRQ₀ (input)
P6₃ (I/O) / TEND₁* (output)
P6₂ (I/O) / DREQ₁* (input)
P6₁ (I/O) / TEND₀* (output) / CS₅ (output)
P6₀ (I/O) / DREQ₀* (input) / CS₄ (output)
Pin functions in mode 7
P6₇ (I/O) / IRQ₃ (input)
P6₆ (I/O) / IRQ₂ (input)
P6₅ (I/O) / IRQ₁ (input)
P6₄ (I/O) / IRQ₀ (input)
P6₃ (I/O) / TEND₁* (output)
P6₂ (I/O) / DREQ₁* (input)
P6₁ (I/O) / TEND₀* (output)
P6₀ (I/O) / DREQ₀* (input)
Note: * The TEND₁, DREQ₁, TEND₀, and DREQ₀ pin functions are not supported in the H8S/2321.
Figure 9.6 Port 6 Pin Functions
Rev.6.00 Sep. 27, 2007 Page 388 of 1268
REJ09B0220-0600