SH7059 Datasheet, PDF (745/1042 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

24. ROM (SH7058S)
Bits 7 to 0
MS7 to MS0
Description
H'AA
The user boot MAT is selected (in user-MAT selection state when the value of these bits are
other than H'AA)
Initial value when these bits are initiated in user boot mode.
H'00
Initial value when these bits are initiated in a mode except for user boot mode (in user-MAT
selection state)
[Programmable condition] These bits are in the execution state in the on-chip RAM.
(6) Flash Transfer Destination Address Register (FTDAR)
FTDAR specifies the on-chip RAM address to which the on-chip program is downloaded.
Make settings for FTDAR before writing 1 to the SCO bit in FCCS. The initial value is H'00 which points to the start
address (H'FFFF0000) in on-chip RAM.
Bit :
Initial value :
R/W :
7
TDER
0
R/W
6
TDA6
0
R/W
5
TDA5
0
R/W
4
TDA4
0
R/W
3
TDA3
0
R/W
2
TDA2
0
R/W
1
TDA1
0
R/W
0
TDA0
0
R/W
• Bit 7—Transfer Destination Address Setting Error: This bit is set to 1 when there is an error in the download start
address set by bits 6 to 0 (TDA6 to TDA0). Whether the address setting is erroneous or not is judged by checking
whether the setting of TDA6 to TDA0 is between the range of H'00 and H'05 after setting the SCO bit in FCCS to 1
and performing download. Before setting the SCO bit to 1 be sure to set the FTDAR value between H'00 to H'05 as
well as clearing this bit to 0.
Bit 7
TDER
Description (Return Value after Download)
0
Setting of TDA6 to TDA0 is normal
(Initial value)
1
Setting of TDER and TDA6 to TDA0 is H'06 to H'FF and download has been aborted
• Bits 6 to 0—Transfer Destination Address (TDA6 to TDA0): These bits specify the download start address. A value
from H'00 to H'05 can be set to specify the download start address in on-chip RAM in 2-Kbyte units.
A value from H'06 to H'FF cannot be set. If such a value is set, the TDER bit (bit 7) in this register is set to 1 to prevent
download from being executed.
Bits 6 to 0
TDA6 to TDA0
H'00
H'01
H'02
H'03
H'04
H'05
H'06 to H'FF
Description
Download start address is set to H'FFFF0000
Download start address is set to H'FFFF0800
Download start address is set to H'FFFF1000
Download start address is set to H'FFFF1800
Download start address is set to H'FFFF2000
Download start address is set to H'FFFF2800
Setting prohibited. If this value is set, the TDER bit (bit 7) is set to 1 to abort the download
processing.
Rev.3.00 Mar. 12, 2008 Page 655 of 948
REJ09B0177-0300