Datasheet

Section 22 RAM
Rev. 3.00 Mar 21, 2006 page 601 of 788
REJ09B0300-0300
Section 22 RAM
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 SYSCR, refer to section 3.2.2, System Control Register
(SYSCR).
Product Classification RAM Capacitance RAM Address
H8S/2161B 4 kbytes H'E080–H'EFFF, H'FF00–H'FF7F
H8S/2160B 4 kbytes H'E080–H'EFFF, H'FF00–H'FF7F
H8S/2141B 4 kbytes H'E080–H'EFFF, H'FF00–H'FF7F
H8S/2140B 4 kbytes H'E080–H'EFFF, H'FF00–H'FF7F
H8S/2145B 8 kbytes H'D080–H'EFFF, H'FF00–H'FF7F
Flash memory version
H8S/2148B 4 kbytes H'E080–H'EFFF, H'FF00–H'FF7F