HD64F2357F20V Datasheet, PDF (357/1049 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-chip Microcomputer H8S Family / H8S/2300 Series

9.13 Port F
9.13.1 Overview
Port F is an 8-bit I/O port. Port F pins also function as bus control signal input/output pins (AS, RD, HWR, LWR, LCAS,
WAIT, BREQO, BREQ, and BACK) and the system clock (ø) output pin.
Figure 9-25 shows the port F pin configuration.
Port F
Port F pins
PF₇/ ø
PF₆/ AS
PF₅/ RD
PF₄/ HWR
PF₃/ LWR
PF₂/ LCAS/ WAIT / BREQO
PF₁/ BACK
PF₀/ BREQ
Pin functions in mode 7*
PF₇ (input)/ ø (output)
PF₆ (I/O)
PF₅ (I/O)
PF₄ (I/O)
PF₃ (I/O)
PF₂ (I/O)
PF₁ (I/O)
PF₀ (I/O)
Pin functions in modes 4 to 6*
PF₇ (input) / ø (output)
AS (output)
RD (output)
HWR (output)
LWR (output)
PF₂ (I/O)/ LCAS (output) / WAIT (input) / BREQO (output)
PF₁ (I/O)/ BACK (output)
PF₀ (I/O)/ BREQ (input)
Note: * Modes 6 and 7 are provided in the on-chip ROM version only.
Figure 9-25 Port F Pin Functions
Rev.6.00 Oct.28.2004 page 327 of 1016
REJ09B0138-0600H