R5S77631Y266BGV Renesas Electronics America, R5S77631Y266BGV Datasheet - Page 721
R5S77631Y266BGV
Manufacturer Part Number
R5S77631Y266BGV
Description
IC SUPERH MPU ROMLESS 499BGA
Manufacturer
Renesas Electronics America
Series
SuperH® SH7780r
Datasheet
1.R5S77631Y266BGV.pdf
(2056 pages)
Specifications of R5S77631Y266BGV
Core Processor
SH-4A
Core Size
32-Bit
Speed
266MHz
Connectivity
Audio Codec, I²C, MMC, SCI, SIM, SIO, SSI, USB
Peripherals
DMA, LCD, POR, WDT
Number Of I /o
107
Program Memory Type
ROMless
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.15 V ~ 1.35 V
Data Converters
A/D 4x10b; D/A 2x8b
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
499-BGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
R5S77631Y266BGV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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17.3.1
WDTST is a readable/writable 32-bit register that specifies the time until a watchdog timer
overflows. The time until WDTCNT overflows becomes the minimum value when set H'001 to
the bits 11 to 0, and the maximum value when set H'000 to the bits 11 to 0. Use a longword access
to write to the WDTST, with H'5A in the bits 31 to 24. The reading value of bits 31 to 24 is
always H'00.
Initial value:
Initial value:
Bit
31 to 24
23 to 12
11 to 0
R/W:
R/W:
Bit:
Bit:
Watchdog Timer Stop Time Register (WDTST)
Bit Name
(Given
code)
WDTST
R/W
31
15
R
0
0
R/W
30
14
R
0
0
R/W
29
13
R
0
0
Initial
Value
H'00
All 0
All 0
(Given code)
R/W
28
12
R
0
0
R/W
R/W
R/W
R/W
R
R/W
27
11
0
0
R/W
R/W
26
10
0
0
Description
Reserved (Given code for writing)
These bits are always read as H'00. To write to this
register, the write value must be H'5A.
Reserved
These bits are always read as 0. The write value
should always be 0.
Counter value
R/W
R/W
25
0
9
0
R/W
R/W
24
0
8
0
R/W
23
R
0
7
0
Section 17 Watchdog Timer and Reset (WDT)
WDTST
Rev. 2.00 May 22, 2009 Page 651 of 1982
R/W
22
R
0
6
0
R/W
21
R
0
5
0
R/W
20
R
0
4
0
R/W
19
R
0
3
0
REJ09B0256-0200
R/W
18
R
0
2
0
R/W
17
R
0
1
0
R/W
16
R
0
0
0
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