h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 312

• Manufacturer Part Number: h8s-2646
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 9 I/O Ports
9.13
9.13.1
Port F is a 7-bit I/O port. Port F also functions as LCD driver output pins (SEG20 to SEG17),
external interrupt input pins (IRQ2, IRQ3), the A/D trigger input pin (ADTRG), bus control signal
I/O pins (AS, RD, HWR, LWR, WAIT), and as the system clock output pin (φ).
Figure 9.12 shows the port F pin configuration.
Rev. 5.00 Sep 22, 2005 page 286 of 1136
REJ09B0257-0500
Note: * In the H8S/2648, H8S/2648R, and H8S/2647.
Port F
Overview
Port F
Port F pins
PF7 /
PF6 / AS / SEG20 / SEG36 *
PF5 / RD / SEG19 / SEG35 *
PF4 / HWR / SEG18 / SEG34 *
PF3 / LWR / ADTRG / IRQ3
PF2 / WAIT / SEG17 / SEG33 *
PF0 / IRQ2
Figure 9.12 Port F Pin Functions
Pin functions in modes 4 to 6
PF7 (input) /
PF6 (I/O) / AS (output) / SEG20 (output) / SEG36 * (output)
PF5 (I/O) / RD (output) / SEG19 (output) / SEG35 * (output)
PF4 (I/O) / HWR (output) / SEG18 (output) / SEG34 * (output)
PF3 (I/O) / LWR (output) / ADTRG (input) / IRQ3 (input)
PF2 (I/O) / WAIT (input) / SEG17 (output) / SEG33 * (output)
PF0 (I/O) / IRQ2 (input)
Pin functions in mode 7
PF7 (I/O) /
PF6 (I/O) / SEG20 (output) / SEG36 * (output)
PF5 (I/O) / SEG19 (output)) / SEG35 * (output)
PF4 (I/O) / SEG18 (output)) / SEG34 * (output)
PF3 (I/O) / ADTRG (input) / IRQ3 (input)
PF2 (I/O) / SEG17 (output)) / SEG33 * (output)
PF0 (I/O) / IRQ2 (input)
(output)
(output)