HD6417709SF133B Renesas Electronics America, HD6417709SF133B Datasheet - Page 234

• Manufacturer Part Number: HD6417709SF133B
• Description: IC SUPERH MPU ROMLESS 208LQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of HD6417709SF133B

• Core Processor: SH-3
• Core Size: 32-Bit
• Speed: 133MHz
• Connectivity: EBI/EMI, FIFO, IrDA, SCI, SmartCard
• Peripherals: DMA, POR, WDT
• Number Of I /o: 96
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 2.05 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 208-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -

8.4
8.4.1
To enter standby mode, set the STBY bit to 1 in STBCR, then execute the SLEEP instruction. The
chip switches from the program execution state to standby mode. In standby mode, power
consumption is greatly reduced by halting not only the CPU, but the clock and on-chip peripheral
modules as well. The clock output from the CKIO and CKIO2 pins also halts. CPU and cache
register contents are held, but some on-chip peripheral modules are initialized. Table 8.4 lists the
states of registers in standby mode.
Table 8.4
Module
Interrupt controller (INTC)
On-chip clock pulse generator
(OSC)
User break controller (UBC)
Bus state controller (BSC)
Timer unit (TMU)
Realtime clock (RTC)
A/D converter (ADC)
D/A converter (DAC)
The procedure for moving to standby mode is as follows:
1. Clear the TME bit in the WDT’s timer control register (WTCSR) to 0 to stop the WDT. Clear
2. After the STBY bit in the STBCR register is set to 1, a SLEEP instruction is executed.
3. Standby mode is entered and the clocks within the chip are halted. The STATUS1 pin output
Rev. 5.00, 09/03, page 188 of 760
the WDT’s timer counter (WTCNT) to 0 and the CKS2–CKS0 bits in the WTCSR register to
appropriate values to secure the specified oscillation settling time.
goes low and the STATUS0 pin output goes high.
Standby Mode
Transition to Standby Mode
Register States in Standby Mode
Registers Initialized
—
—
—
—
TSTR register
—
All registers
—
Registers Retaining Data
All registers
All registers
All registers
All registers
Registers other than TSTR
All registers
—
All registers