H8S-2350 RENESAS [Renesas Technology Corp], H8S-2350 Datasheet - Page 433

• Manufacturer Part Number: H8S-2350
• Description: 16-Bit Single-Chip Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

9.13
9.13.1
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 ( ) output
pin.
Figure 9.25 shows the port F pin configuration.
Pin functions in modes 3 and 7*
PF
PF
PF
PF
PF
PF
PF
PF
Note: * Modes 2, 3, 6, and 7 only apply to the H8S/2351.
Port F
7
6
5
4
3
2
1
0
(input)/
(I/O)
(I/O)
(I/O)
(I/O)
(I/O)
(I/O)
(I/O)
Port F
Overview
(output)
Port F pins
PF
PF
PF
PF
PF
PF
PF
PF
7
6
5
4
3
2
1
0
/
/ AS
/ RD
/ HWR
/ LWR
/ LCAS/ WAIT / BREQO
/ BACK
/ BREQ
Figure 9.25 Port F Pin Functions
Pin functions in modes 1 and 2*
PF
AS
RD
HWR
LWR
PF
PF
PF
Pin functions in modes 4 to 6*
PF
AS
RD
HWR
LWR
PF
PF
PF
7
2
1
0
7
2
1
0
(input) /
(output)
(output)
(I/O)/
(I/O)/
(I/O)/
(input) /
(output)
(output)
(I/O)/ LCAS
(I/O)/ BACK (output)
(I/O)/ BREQ
(output)
(output)
(output)
(output)
WAIT
BACK
BREQ
Rev. 3.00 Sep 15, 2006 page 399 of 988
(output)
(output)
(input)
(output)
(input)
(output) / WAIT (input) / BREQO (output)
(input)
/BREQO
Section 9 I/O Ports
REJ09B0330-0300