DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 620

• 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: -

(2.2) Flash user branch address setting parameter (FUBRA: general register R5 of CPU)
Initial value:
Initial value:
Rev. 5.00 Mar. 06, 2009 Page 600 of 770
REJ09B0243-0500
Bit
31 to
16
15 to 0 F15 to F0
This parameter sets the user branch destination address. The user program which has been set
can be executed in specified processing units when programming and erasing.
R/W:
R/W:
Bit:
Bit:
Bit Name
⎯
UA31
UA15
R/W
R/W
31
15
-
-
UA30
UA14
R/W
R/W
30
14
-
-
UA29
UA13
R/W
R/W
Initial
Value
Undefined R/W
Undefined R/W
29
13
-
-
UA28
UA12
R/W
R/W
28
12
-
-
UA27
UA11
R/W
R/W
27
11
-
-
R/W
UA26
UA10
R/W
R/W
26
10
-
-
Description
Unused
Return 0.
Frequency Set
Set the operating frequency of the CPU. The setting
value must be calculated as the following methods.
1. The operating frequency, which is shown in MHz
2. The centuplicated value is converted to the binary
UA25
R/W
R/W
UA9
25
9
-
-
units must be rounded in a number to three decimal
places and be shown in a number of two decimal
places.
digit and is written to the FPEFEQ parameter
(general register R4). For example, when the
operating frequency of the CPU is 28.882 MHz, the
value is as follows.
⎯ The number to three decimal places of 28.882 is
⎯ The formula that 28.88 × 100 = 2888 is
UA24
R/W
R/W
UA8
24
rounded and the value is thus 28.88.
converted to the binary digit and B'0000, B'1011,
B'0100, B'1000 (H'0B48) is set to R4.
8
-
-
UA23
R/W
R/W
UA7
23
7
-
-
UA22
R/W
R/W
UA6
22
6
-
-
UA21
R/W
R/W
UA5
21
5
-
-
UA20
R/W
R/W
UA4
20
4
-
-
UA19
R/W
R/W
UA3
19
3
-
-
UA18
R/W
R/W
UA2
18
2
-
-
UA17
R/W
R/W
UA1
17
1
-
-
UA16
R/W
R/W
UA0
16
0
-
-