3069RF-ZTAT Datasheet, PDF (616/1003 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER

(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'FFEF20) 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 (TDER): 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'03 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'03 as well as
clearing this bit to 0.
Bit 7
TDER
0
1
Description(Return Value after Download)
Setting of TDA6 to TDA0 is normal
(Initial value)
Setting of TDER and TDA6 to TDA0 is H'04 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'03 can be set to specify the download start address in on-
chip RAM in 4-kbyte units.
A value from H'04 to H'7F 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 to H'FF
Description
Download start address is set to H'FFEF20
(Initial value)
Download start address is set to H'FFDF20
Download start address is set to H'FFCF20
Download start address is set to H'FFBF20
Setting prohibited. If this value is set, the TDER bit (bit 7) is set to 1 to abort the
download processing.
Rev. 5.0, 09/04, page 594 of 978