HD6417660 RENESAS [Renesas Technology Corp], HD6417660 Datasheet - Page 534

• Manufacturer Part Number: HD6417660
• Description: Renesas 32-Bit RISC Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

Transferring of Initial Programming Program: The boot program starts downloading the initial
programming program after the automatic adjustment of the bit transfer rate has been completed.
The maximum size of the initial programming program that is downloaded over the SCIF0
channel is 8,192 bytes (H'2000)*
address range from H'055F0000 to H'055F1FFF (physical addresses) in the on-chip memory (U
memory). After the downloading has been completed, the boot program automatically branches to
address H'055F0000*
H'055F0000.
Although the boot program uses the address range from H'055FFFFC to H'055FFFFF (physical
addresses) as a working area, the downloaded initial programming program is able to use this area
after downloading has been completed.
Notes: 1. The size setting for the initial programming program must not be H'0000 or greater
A maximum of 16 Mbytes may be mounted in area 0, i.e., the address range from H'02000000 to
H'02FFFFFF is available (H'00000000 to H'00FFFFFF in normal mode) as shown in figure 17.2.
In this LSI, external memory may be mounted in areas 3 and 4 as well as in area 0. The maximum
size for each area is 16 Mbytes. Areas 3 and 4 may be used as expansion spaces for the external
flash memory, when this is necessary, by preparing a corresponding initial programming program.
Rev. 1.00, 02/04, page 496 of 804
2. The initial setting routine of user program that is programmed by the initial
than H'2001, as normal operation is not possible in such a case. If such a program is
used, correct operation is not guaranteed.
programming program in boot mode should be stored from H'02000000 in area 0. The
initial setting is enabled since the branch to the first address of area 0 (H'00000000) is
made immediately after a power-on reset in normal mode.
2
. Therefore the start address of the program that is downloaded must be
1
. The downloaded initial programming program is stored in the