HD6477021X20V Renesas Electronics America, HD6477021X20V Datasheet - Page 65

• Manufacturer Part Number: HD6477021X20V
• Description: MCU 5V 32K PB-FREE 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7020r

Specifications of HD6477021X20V

• Core Processor: SH-1
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: EBI/EMI, SCI
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: OTP
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

Reset State: In the reset state the CPU is reset. This occurs when the RES pin level goes low.
When the NMI pin is high, the result is a power-on reset; when it is low, a manual reset will
occur.When turning on the power, make sure to carry out a power-on reset.
42 RENESAS
or DMA address error occurs
From any state when
RES = 0 and NMI = 1
Bus request
When an interrupt source
generated
Bus release state
Bus request
Figure 2.6 Transitions Between Processing States
Power-on reset state
generated
Bus request
cleared
Bus request
Sleep mode
cleared
RES = 1,
NMI = 1
source occurs
Bus request
cleared
Bus request
generated
processing
Exception processing state
SBY bit cleared for
SLEEP instruction
Exception
Program execution state
From any state when
RES = 0 and NMI = 0
RES = 0, NMI = 0
RES = 0, NMI = 1
Exception
processing
ends
RES = 1,
NMI = 0
source occurs
Manual reset state
NMI interrupt
Standby mode
SBY bit set
for SLEEP
instruction
Power-down state
Reset states