h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 694

• Manufacturer Part Number: h8s-2646
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 19 RAM
19.1.2
The on-chip RAM is controlled by SYSCR. Table 19.1 shows the address and initial value of
SYSCR.
Table 19.1 RAM Register
Note: * Lower 16 bits of the address.
19.2
19.2.1
The on-chip RAM is enabled or disabled by the RAME bit in SYSCR. For details of other bits in
SYSCR, see section 3.2.2, System Control Register (SYSCR).
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.
Rev. 5.00 Sep 22, 2005 page 668 of 1136
REJ09B0257-0500
Name
System control register
Bit 0
RAME
0
1
Bit
Initial value
R/W
Register Configuration
Register Descriptions
System Control Register (SYSCR)
Description
On-chip RAM is disabled
On-chip RAM is enabled
:
:
:
MACS
R/W
7
0
—
—
6
0
Abbreviation
SYSCR
INTM1
R/W
5
0
INTM0
R/W
4
0
R/W
R/W
NMIEG
R/W
3
0
Initial Value
H'01
R/W
—
2
0
—
—
1
0
(Initial value)
Address *
H'FDE5
RAME
R/W
0
1