HD6432351 Datasheet, PDF (371/989 Pages) Renesas Technology Corp – The H8S/2000 CPU has an internal 32-bit architecture, is provided with sixteen 16-bit general registers and a concise

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. Pins P6₇ to P6₄ are schmitt-triggered
inputs. Figure 9-6 shows the port 6 pin configuration.
Port 6 pins
Pin functions in modes 1, 2, 3, and 7*
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)
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)
Pin functions in modes 4 to 6*
P6₇ (input)/IRQ3 (input)/CS7 (output)
P6₆ (input)/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 (input)/TEND0 (output)/CS5 (output)
P6₀ (input)/DREQ0 (input)/CS4 (output)
Note: * Modes 2, 3, 6, and 7 only apply to the H8S/2351.
Figure 9-6 Port 6 Pin Functions
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