DS72030W200FPV Renesas Electronics America, DS72030W200FPV Datasheet - Page 1459

• 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

28.3.3
This example describes a transition to software standby mode on the falling edge of the NMI
signal, and cancellation on the rising edge of the NMI signal. The timing is shown in figure 28.1.
When the NMI pin is changed from high to low level while the NMI edge select bit (NMIE) in the
interrupt control register 0 (ICR0) is set to 0 (falling edge detection), the NMI interrupt is
accepted. When the NMIE bit is set to 1 (rising edge detection) by the NMI exception service
routine, the STBY and DEEP bits in STBCR are set to 1 and 0 respectively, and a SLEEP
instruction is executed, software standby mode is entered. Thereafter, software standby mode is
canceled when the NMI pin is changed from low to high level.
Oscillator
CK
NMI pin
NMIE bit
STBY bit
LSI state
Figure 28.1 NMI Timing in Software Standby Mode (Application Example)
Software Standby Mode Application Example
execution
Program
exception
handling
NMI
service routine
Exception
standby mode
Software
Rev. 3.00 Sep. 28, 2009 Page 1427 of 1650
settling time
Oscillation
Section 28 Power-Down Modes
NMI exception
REJ09B0313-0300
handling