DS72030W200FPV Renesas Electronics America, DS72030W200FPV Datasheet - Page 715

• Manufacturer Part Number: DS72030W200FPV
• Description: MPU, 32BIT, SH7203, ROMLESS, 240QFP
• Manufacturer: Renesas Electronics America
• Series: SH7200r

Specifications of DS72030W200FPV

• Core Size: 32bit
• Program Memory Size: 32KB
• Cpu Speed: 200MHz
• Digital Ic Case Style: QFP
• No. Of Pins: 240
• Supply Voltage Range: 1.1V To 1.3V
• Operating Temperature Range: -20°C To +85°C
• Svhc: No SVHC
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(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 13.3.
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 13.3 Writing to WRCSR
H'A5
H'5A
Rev. 3.00 Sep. 28, 2009 Page 683 of 1650
8
8
7
7
Section 13 Watchdog Timer (WDT)
H'00
Write data
REJ09B0313-0300
0
0