HD6412320 RENESAS [Renesas Technology Corp], HD6412320 Datasheet - Page 112
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HD6412320
Manufacturer Part Number
HD6412320
Description
Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6412320.pdf
(1302 pages)
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Section 3 MCU Operating Modes
Bit 1—IRQ Port Switching Select (IRQPAS): Selects switching of input pins for IRQ
IRQ
Bit 1
IRQPAS
0
1
Bit 0—RAM Enable (RAME): Enables or disables the on-chip RAM. The RAME bit is
initialized when the reset state is released. It is not initialized in software standby mode.
Bit 0
RAME
0
1
3.2.3
Note: * R/W in the H8S/2329B F-ZTAT.
SYSCR2 is an 8-bit readable/writable register that performs on-chip flash memory control.
SYSCR2 is initialized to H'00 by a reset, and in hardware standby mode.
Bits 7 to 4—Reserved: These bits are always read as 0, and cannot be modified.
Bit 3—Flash Memory Control Register Enable (FLSHE): Controls CPU access to the flash
memory control registers (FLMCR1, FLMCR2, EBR1, and EBR2). For details, see section 19,
ROM.
Rev.6.00 Sep. 27, 2007 Page 82 of 1268
REJ09B0220-0600
Bit
Initial value :
R/W
4
to IRQ
System Control Register 2 (SYSCR2) (F-ZTAT Version Only)
7
Description
PA
P5
Description
On-chip RAM is disabled
On-chip RAM is enabled
input is always performed from one of the ports.
:
:
0
4
to P5
to PA
—
—
7
0
3
7
are used for IRQ
are used for IRQ
—
—
6
0
4
4
—
—
to IRQ
5
0
to IRQ
7
7
input
input
—
—
4
0
FLSHE
R/W
3
0
—
—
2
0
—
—
1
0
(Initial value)
(Initial value)
4
— (R/W) *
to IRQ
—
0
0
7
.
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