HD6412320 RENESAS [Renesas Technology Corp], HD6412320 Datasheet - Page 429

• Manufacturer Part Number: HD6412320
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Bit 0—Address 20 Enable (A20E): Enables or disables address output 20 (A
in modes 4 to 6.
Bit 0
A20E
0
1
System Control Register (SYSCR)
Bit 7—Reserved: Only 0 should be written to this bit.
Bit 6—Reserved: This bit is always read as 0, and cannot be modified.
Bits 5 and 4—Interrupt Control Mode 1 and 0 (INTM1, INTM0): These bits select either of
two interrupt control modes for the interrupt controller. For details of the interrupt control modes,
see section 5.4.1, Interrupt Control Modes and Interrupt Operation.
Bit 5
INTM1
0
1
Bit 3—NMI Edge Select (NMIEG): Selects the input edge for the NMI pin.
Bit 3
NMIEG
0
1
Bit
Initial value :
R/W
Bit 4
INTM0
0
1
0
1
:
:
Description
DR is output when PA4DDR = 1
A
Description
Interrupt requested at falling edge of NMI input
Interrupt requested at rising edge of NMI input
20
is output when PA4DDR = 1
R/W
—
7
0
Interrupt
Control Mode
0
—
2
—
—
—
6
0
INTM1
R/W
5
0
Description
Interrupt control by I bit
Setting prohibited
Interrupt control by bits I2 to I0
Setting prohibited
INTM0
R/W
4
0
Rev.6.00 Sep. 27, 2007 Page 399 of 1268
NMIEG
R/W
3
0
LWROD IRQPAS
R/W
2
0
20
Section 9 I/O Ports
). This bit is valid
REJ09B0220-0600
R/W
1
0
(Initial value)
(Initial value)
(Initial value)
RAME
R/W
0
1