r4f2456 Renesas Electronics Corporation., r4f2456 Datasheet - Page 1131

• Manufacturer Part Number: r4f2456
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

This LSI has an on-chip high-speed static RAM. The RAM is connected to the CPU by a 16-bit
data bus, enabling one-state access by the CPU to both byte data and word data.
The on-chip RAM can be enabled or disabled by means of the RAME bit in the system control
register (SYSCR). For details on the system control register (SYSCR), see section 3.2.2, System
Control Register (SYSCR).
Note:
Product Type
H8S/24569
H8S/24569R
H8S/24549
H8S/24568
H8S/24568R
H8S/24565
H8S/24565R
H8S/24548
H8S/24545
H8S/24562
H8S/24562R
H8S/24542
H8S/24561
H8S/24561R
H8S/24541
*
In planning.
R4F24569
R4F24569R
R4F24549
R4F24568
R4F24568R
R4F24565
R4F24565R
R4F24548
R4F24545
R4S24562
R4S24562R
R4S24542
R4S24561
R4S24561R
R4S24541
Section 21 RAM
ROM Type
Flash memory version
ROM-less version
Rev. 1.00 Sep. 19, 2008 Page 1101 of 1342
RAM
Capacity
64 Kbytes*
48 Kbytes
64 Kbytes*
48 Kbytes
RAM Address
H'FEC000 to H'FFBFFF
H'FF0000 to H'FFBFFF
H'FEC000 to H'FFBFFF
H'FF0000 to H'FFBFFF
REJ09B0467-0100
Section 21 RAM