DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 688

• Manufacturer Part Number: DF2437FV
• Description: IC H8S/2437 MCU FLASH 128QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2400r

Specifications of DF2437FV

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 85
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 128-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

22.1
The registers relating to the power-down mode are shown below. For details on the system clock
control register (SCKCR), refer to section 21.1.1, System Clock Control Register (SCKCR).
• System clock control register (SCKCR)
• Standby control register (SBYCR)
• Module stop control registers H and L (MSTPCRH, MSTPCRL)
• Extension module stop control registers H and L (EXMSTPCRH, EXMSTPCRL)
22.1.1
SBYCR performs software standby mode control.
Rev.2.00 May. 28, 2009 Page 648 of 732
REJ09B0059-0200
Bit
7
6
Bit Name
SSBY
OPE
Register Descriptions
Standby Control Register (SBYCR)
Initial Value
0
1
R/W
R/W
R/W
Description
Software Standby
Specifies the transition mode after executing the
SLEEP instruction.
0: Shifts to sleep mode after the SLEEP instruction
1: Shifts to software standby mode after the
This bit does not change when clearing software
standby mode by using external interrupts and
shifting to normal operation. Write 0 to this bit
when clearing.
Output Port Enable
Specifies whether the states of the address bus
and bus control signals (CS1 to CS3, AS/AH, RD,
HWR, LWR) are retained or set to the high-
impedance state in software standby mode.
0: In software standby mode, address bus and bus
1: In software standby mode, address bus and bus
control signals are high-impedance
control signals retain the previous states
is executed
SLEEP instruction is executed