HD6417708SF60V Renesas Electronics America, HD6417708SF60V Datasheet - Page 174

• Manufacturer Part Number: HD6417708SF60V
• Description: IC SUPERH MPU ROMLESS 208LQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of HD6417708SF60V

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 60MHz
• Connectivity: EBI/EMI, SCI, SmartCard
• Peripherals: POR, WDT
• Number Of I /o: 8
• Program Memory Type: ROMless
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 208-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Ram Size: -
• Program Memory Size: -
• Data Converters: -

8.7.2
Hardware standby mode can only be canceled by a power-on reset.
When the CA pin is driven high while the RESET pin is low and the BREQ pin is high, clock
oscillation is started. Hold the RESET pin low until clock oscillation stabilizes. When the RESET
pin is driven high, the CPU begins power-on reset processing.
Hardware standby mode cannot be canceled by an interrupt or manual reset.
8.7.3
Figures 8.10 and 8.11 show examples of pin timing in hardware standby mode.
The CA pin is sampled using EXTAL2 (32.768 kHz), and a hardware standby request is only
recognized when the pin is low for two consecutive clock cycles.
The CA pin must be held low while the chip is in hardware standby mode.
Clock oscillation starts when the CA pin is driven high after the RESET pin is driven low.
154
Figure 8.10 Hardware Standby Mode Timing (When CA Goes Low in Normal Operation)
STATUS
Rcyc: EXTAL2 (32.768 kHz) cycle
RESET
CKIO
CA
Canceling Hardware Standby Mode
Hardware Standby Mode Timing
2 Rcyc or more
Normal
Standby
0 to 10 Bcyc
Undefined
Reset