HD6413003RVF RENESAS [Renesas Technology Corp], HD6413003RVF Datasheet - Page 519

• Manufacturer Part Number: HD6413003RVF
• Description: microcontroller (MCU)
• Manufacturer: RENESAS [Renesas Technology Corp]

15.1 Overview
The H8/3003 has 512 bytes of on-chip static RAM. The RAM is connected to the CPU by a 16-bit
data bus. The CPU accesses both byte data and word data in two states, making the RAM suitable
for rapid data transfer.
The on-chip RAM is assigned to addresses H'FFD10 to H'FFF0F in modes 1 and 2, and addresses
H'FFFD10 to H'FFFF0F in modes 3 and 4. The RAM enable bit (RAME) in the system control
register (SYSCR) can enable or disable the on-chip RAM.
15.1.1 Block Diagram
Figure 15-1 shows a block diagram of the on-chip RAM.
Note:
*
Lower 16 bits of the address
Figure 15-1 RAM Block Diagram
Even addresses
Section 15 RAM
On-chip data bus (upper 8 bits)
On-chip data bus (lower 8 bits)
H'FD10
H'FF0E *
H'FD12
*
On-chip RAM
Bus interface
501
Odd addresses
H'FD11
H'FD13
H'FF0F *
*
*