Datasheet

Section 19 RAM
Rev.7.00 Mar. 18, 2009 page 831 of 1136
REJ09B0109-0700
Section 19 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 the system control register (SYSCR), refer to section 3.2.2,
System Control Register (SYSCR).
Part No. ROM Type
RAM
Capacity
RAM Address
H8S/2378 HD64F2378B Flash memory version 32 kbytes H'FF4000 to H'FFBFFF
H8S/2378R HD64F2378R
H8S/2377 HD64F2377 24 kbytes H'FF6000 to H'FFBFFF
H8S/2377R HD64F2377R
H8S/2374
HD64F2374
32 kbytes H'FF4000 to H'FFBFFF
H8S/2374R
HD64F2374R
H8S/2372
HD64F2372
H8S/2372R
HD64F2372R
H8S/2371
HD64F2371
24 kbytes H'FF6000 to H'FFBFFF
H8S/2371R
HD64F2371R
H8S/2370
HD64F2370
16 kbytes H'FF8000 to H'FFBFFF
H8S/2370R
HD64F2370R
H8S/2375 HD6432375 Masked ROM version 16 kbytes H'FF8000 to H'FFBFFF
H8S/2375R HD6432375R
H8S/2373 HD6412373 ROMless version 16 kbytes H'FF8000 to H'FFBFFF
H8S/2373R HD6412373R