Lpc/Fw Memory Access Command; Figure 18.8 Example Of Command Space Setting - Renesas H8S Series Hardware Manual

Section 18 LPC Interface (LPC)
18.4.8

LPC/FW Memory Access Command

An LPC/FW memory cycle with a special address can be used as a command. It allows to control
flash memory erasure, programming and to read the status register of the flash memory. The host
address space of which lower 16 bits are H'FFF0 to H'FFFF can be used as command space
according to the RAMBAR setting. Figure 18.8 shows an example of command space setting.
RAMBAR: H1'000
RAMASSR: H'00 (8kbytes)
Rev. 3.00 Jul. 14, 2005 Page 692 of 986
REJ09B0098-0300
H'10000000
On-chip RAM space
H'10001FFF
H'1000FFF0
Command space
H'1000FFFF
Host address
Note: CMD: Command address

Figure 18.8 Example of Command Space Setting

CMD0 (H'1000FFF0)
CMD1 (H'1000FFF1)
CMDF (H'1000FFFF)