DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 689

• Manufacturer Part Number: DF71251AD50FPV
• Description: MCU RISC FLASH 32K 8K 64LQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH Tinyr

Specifications of DF71251AD50FPV

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 37
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

19.3.2
STBCR2 is an 8-bit readable/writable register that controls the RAM operation in power-down
mode.
Bit
7
6
5 to 3
2 to 0
Standby Control Register 2 (STBCR2)
Bit Name
MSTP7
⎯
⎯
⎯
Initial value:
Initial
Value
0
0
All 1
All 0
R/W:
Bit:
MSTP
R/W
7
0
7
R/W
R/W
R/W
R/W
R
R/W
6
0
-
R/W
5
1
-
Description
Module Stop Bit 7
When this bit is set to 1, the supply of the clock to
the RAM is halted.
0: RAM operates
1: Clock supply to RAM halted
Reserved
This bit is always read as 0. The write value should
always be 0.
Reserved
These bits are always read as 1. The write value
should always be 1.
Reserved
These bits are always read as 0. The write value
should always be 0.
R/W
4
1
-
R/W
3
1
-
Rev. 5.00 Mar. 06, 2009 Page 669 of 770
R
2
0
-
R
1
0
-
R
0
0
-
REJ09B0243-0500