DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 691

• 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: -

19.3.4
STBCR4 is an 8-bit readable/writable register that controls the operation of modules in power-
down mode.
Bit
7
6
5
4, 3
2
1
Standby Control Register 4 (STBCR4)
Bit Name
⎯
MSTP22
MSTP21
⎯
⎯
MSTP17
Initial value:
Initial
Value
1
1
1
All 1
1
1
R/W:
Bit:
R/W
7
1
-
R/W
R/W
R/W
R/W
R
R/W
R/W
MSTP
R/W
22
6
1
Description
Reserved
This bit is always read as 1. The write value should
always be 1.
Module Stop Bit 22
When this bit is set to 1, the supply of the clock to the
MTU2 is halted.
0: MTU2 operates
1: Clock supply to MTU2 halted
Module Stop Bit 21
When this bit is set to 1, the supply of the clock to the
CMT is halted.
0: CMT operates
1: Clock supply to CMT halted
Reserved
These bits are always read as 1. The write value should
always be 1.
Reserved
This bit is always read as 1. The write value should
always be 1.
Module Stop Bit 17
When this bit is set to 1, the supply of the clock to the
A/D_1 is halted.
0: A/D_1 operates
1: Clock supply to A/D_1 halted
MSTP
R/W
21
5
1
R
4
1
-
R
3
1
-
R/W
Rev. 5.00 Mar. 06, 2009 Page 671 of 770
2
1
-
MSTP
R/W
17
1
1
MSTP
R/W
16
0
1
REJ09B0243-0500