r5s72060w200fpv Renesas Electronics Corporation., r5s72060w200fpv Datasheet - Page 737
r5s72060w200fpv
Manufacturer Part Number
r5s72060w200fpv
Description
32-bit Risc Microcomputer Superhtm Risc Engine Family / Sh7200 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.R5S72060W200FPV.pdf
(1180 pages)
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(2)
WRCSR must be written by a word access to address H'FFFE0004. It cannot be written by byte
transfer or longword transfer instructions.
Procedures for writing 0 to WOVF (bit 7) and for writing to RSTE (bit 6) and RSTS (bit 5) are
different, as shown in figure 14.3.
To write 0 to the WOVF bit, the write data must be H'A5 in the upper byte and H'00 in the lower
byte. This clears the WOVF bit to 0. The RSTE and RSTS bits are not affected. To write to the
RSTE and RSTS bits, the upper byte must be H'5A and the lower byte must be the write data. The
values of bits 6 and 5 of the lower byte are transferred to the RSTE and RSTS bits, respectively.
The WOVF bit is not affected.
(3)
WTCNT, WTCSR, and WRCSR are read in a method similar to other registers. WTCSR is
allocated to address H'FFFE0000, WTCNT to address H'FFFE0002, and WRCSR to address
H'FFFE0004. Byte transfer instructions must be used for reading from these registers.
Writing 0 to the WOVF bit
Writing to the RSTE and RSTS bits
Writing to WRCSR
Reading from WTCNT, WTCSR, and WRCSR
Address: H'FFFE0004
Address: H'FFFE0004
15
15
Figure 14.3 Writing to WRCSR
H'A5
H'5A
Rev. 2.00 Dec. 09, 2005 Page 713 of 1152
8
8
7
7
Section 14 Watchdog Timer (WDT)
H'00
Write data
REJ09B0191-0200
0
0
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