HD6412350 Hitachi, HD6412350 Datasheet - Page 671

• Manufacturer Part Number: HD6412350
• Description: (HD6412350 / HD6432351) 16-BIT MICROCONTROLLER
• Manufacturer: Hitachi

17.1
The H8S/2350 Series has 2 kbytes of 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. This makes it possible to perform fast word data transfer.
The on-chip RAM can be enabled or disabled by means of the RAM enable bit (RAME) in the
system control register (SYSCR).
17.1.1
Figure 17-1 shows a block diagram of the on-chip RAM.
Overview
Block Diagram
Figure 17-1 Block Diagram of RAM
H'FFFBFE
H'FFF400
H'FFF402
H'FFF404
Section 17 RAM
Internal data bus (upper 8 bits)
Internal data bus (lower 8 bits)
H'FFFBFF
H'FFF401
H'FFF403
H'FFF405
651