DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 155

• 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: -

7.2.14
BRDR is a 32-bit read-only register. BRDR stores bits 27 to 0 in the address of the branch
destination instruction. BRDR has the flag bit that is set to 1 when a branch occurs. This flag bit is
cleared to 0 by a power-on reset or manual reset when BRDR is read or the setting to enable PC
trace is made. Other bits are not initialized by a power-on reset. The eight BRDR registers have a
queue structure and a stored register is shifted at every branch.
Initial value:
Initial value:
Bit
31
30 to 28 ⎯
27 to 0
R/W:
R/W:
Bit:
Bit:
BDA15 BDA14 BDA13 BDA12 BDA11 BDA10 BDA9
Branch Destination Register (BRDR)
DVF
31
15
R
R
Bit Name
DVF
BDA27 to
BDA0
0
-
30
14
R
R
0
-
-
29
13
R
R
0
-
-
Initial
Value
0
All 0
Undefined R
28
12
R
R
0
-
-
BDA27 BDA26 BDA25 BDA24 BDA23 BDA22 BDA21 BDA20 BDA19 BDA18 BDA17 BDA16
27
11
R
R
-
-
R/W
R
R
26
10
R
R
-
-
Description
BRDR Valid Flag
Indicates whether a branch destination address is
stored. This flag bit is set to 1 when a branch occurs.
This flag is cleared to 0 when BRDR is read, the
setting to enable PC trace is made, or BRDR is
initialized by a power-on reset.
0: The value of BRDR register is invalid
1: The value of BRDR register is valid
Reserved
Branch Destination Address
Store bits 27 to 0 of the branch destination address.
These bits are always read as 0. The write value
should always be 0.
25
R
R
9
-
-
BDA8
24
R
R
8
-
-
BDA7
23
R
R
7
-
-
BDA6
22
R
R
Rev. 5.00 Mar. 06, 2009 Page 135 of 770
6
-
-
BDA5
21
R
R
5
-
-
BDA4
20
R
R
4
-
-
BDA3
19
R
R
3
-
-
REJ09B0243-0500
BDA2
18
R
R
2
-
-
BDA1
17
R
R
1
-
-
BDA0
16
R
R
0
-
-