HD6412340 HITACHI [Hitachi Semiconductor], HD6412340 Datasheet - Page 286

• Manufacturer Part Number: HD6412340
• Description: H8S/2345 F-ZTAT Hardware Manual
• Manufacturer: HITACHI [Hitachi Semiconductor]

8.11.3
Port F pins also function as bus control signal input/output pins (AS, RD, HWR, LWR, WAIT,
BREQ, and BACK) the system clock (ø) output pin and interrupt input pins (IRQ0 to IRQ3). The
pin functions differ between modes 1, 2, 4, 5, and 6*, and modes 3 and 7*. Port F pin functions are
shown in table 8.20.
Table 8.20 Port F Pin Functions
Pin
PF
PF
PF
PF
7
6
5
4
/ø
/AS
/RD
/HWR
Pin Functions
Selection Method and Pin Functions
The pin function is switched as shown below according to bit PF7DDR.
The pin function is switched as shown below according to the operating mode
and bit PF6DDR.
Note: * Modes 1 to 3 are not available on the F-ZTAT version.
The pin function is switched as shown below according to the operating mode
and bit PF5DDR.
Note: *
The pin function is switched as shown below according to the operating mode
and bit PF4DDR.
Note: *
PF7DDR
Pin function
Operating
Mode
PF6DDR
Pin function
Operating
Mode
PF5DDR
Pin function
Operating
Mode
PF4DDR
Pin function
Modes 2, 3, 6, and 7 are not available on the ROMless version.
Modes 1 to 3 are not available on the F-ZTAT version.
Modes 2, 3, 6, and 7 are not available on the ROMless version.
Modes 1 to 3 are not available on the F-ZTAT version.
Modes 2, 3, 6, and 7 are not available on the ROMless version.
HWR output pin
AS output pin
RD output pin
1, 2, 4, 5, 6 *
1, 2, 4, 5, 6 *
1, 2, 4, 5, 6 *
Modes
Modes
Modes
PF
—
—
—
7
input pin
0
PF
PF
PF
6
5
4
input pin
input pin
input pin
0
0
0
Modes 3 and 7 *
Modes 3 and 7 *
Modes 3 and 7 *
ø output pin
PF
PF
PF
1
6
5
4
output pin
output pin
output pin
1
1
1
269