DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 154

• 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: -

7.2.13
BRSR is a 32-bit read-only register. BRSR stores bits 27 to 0 in the address of the branch source
instruction. BRSR 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 BRSR is read or the setting to enable PC trace is made.
Other bits are not initialized by a power-on reset. The eight BRSR registers have a queue structure
and a stored register is shifted at every branch.
Initial value:
Initial value:
Rev. 5.00 Mar. 06, 2009 Page 134 of 770
REJ09B0243-0500
Bit
31
30 to 28 ⎯
27 to 0
R/W:
R/W:
Bit:
Bit:
BSA15 BSA14 BSA13 BSA12 BSA11 BSA10 BSA9
Branch Source Register (BRSR)
SVF
31
15
R
R
SVF
BSA27 to
0
Bit Name
BSA0
-
30
14
R
R
0
-
-
29
13
R
R
0
-
-
Initial
Value
0
All 0
Undefined R
28
12
R
R
0
-
-
BSA27 BSA26 BSA25 BSA24 BSA23 BSA22 BSA21 BSA20 BSA19 BSA18 BSA17 BSA16
27
11
R
R
-
-
R/W
R
R
26
10
R
R
-
-
Description
BRSR Valid Flag
Indicates whether the branch source address is stored.
This flag bit is set to 1 when a branch occurs. This flag
is cleared to 0 when BRSR is read, the setting to
enable PC trace is made, or BRSR is initialized by a
power-on reset.
0: The value of BRSR register is invalid
1: The value of BRSR register is valid
Reserved
These bits are always read as 0. The write value
should always be 0.
Branch Source Address
Store bits 27 to 0 of the branch source address.
25
R
R
9
-
-
BSA8
24
R
R
8
-
-
BSA7
23
R
R
7
-
-
BSA6
22
R
R
6
-
-
BSA5
21
R
R
5
-
-
BSA4
20
R
R
4
-
-
BSA3
19
R
R
3
-
-
BSA2
18
R
R
2
-
-
BSA1
17
R
R
1
-
-
BSA0
16
R
R
0
-
-