HD6417712BPV Renesas Electronics America, HD6417712BPV Datasheet - Page 371
HD6417712BPV
Manufacturer Part Number
HD6417712BPV
Description
MPU 1.5/3.3V 0K PB-FREE 256-BGA
Manufacturer
Renesas Electronics America
Series
SuperH® SH Ethernetr
Datasheet
1.HD6417712BPV.pdf
(980 pages)
Specifications of HD6417712BPV
Core Processor
SH-3 DSP
Core Size
32-Bit
Speed
200MHz
Connectivity
EBI/EMI, Ethernet, FIFO, SCI, SIO
Peripherals
DMA, POR, WDT
Number Of I /o
24
Program Memory Type
ROMless
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.4 V ~ 1.6 V
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
256-BGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD6417712BPV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 371 of 980
- Download datasheet (6Mb)
11.8
11.8.1
The WDT can be used to cancel standby mode with an interrupt such as an NMI. The procedure is
described below. (The WDT does not run when resets are used for canceling, so keep the RESETP
or RESETM pin low until the clock stabilizes.)
1. Before transitioning to standby mode, always clear the TME bit in WTCSR to 0. When the
2. Set the type of count clock used in the CKS2 to CKS0 bits in WTCSR and the initial values for
3. Move to standby mode by executing a SLEEP instruction to stop the clock.
4. The WDT starts counting by detecting the edge change of the NMI signal.
5. When the WDT count overflows, the CPG starts supplying the clock and the processor
6. Since the WDT continues counting from H'00, clear the STBY bit in STBCR to 0 in the
WTCNT write
WTCSR write
TME bit is 1, an erroneous reset or interval timer interrupt may be generated when the count
overflows.
the counter in WTCNT. These values should ensure that the time till count overflow is longer
than the clock oscillation settling time.
resumes operation. The WOVF flag in WTCSR is not set at this time.
interrupt processing program and this will stop the WDT. When the STBY bit remains 1, the
LSI again enters the standby mode when the WDT has counted up to H'80. This standby mode
can be canceled by power-on resets.
Address: H'A415FF84
Address: H'A415FF86
Using WDT
Canceling Standbys
Figure 11.3 Writing to WTCNT and WTCSR
15
15
H'5A
H'A5
8
8
Rev. 1.00 Dec. 27, 2005 Page 327 of 932
Section 11 On-Chip Oscillation Circuits
7
7
Write data
Write data
REJ09B0269-0100
0
0
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