R5S77631Y266BGV Renesas Electronics America, R5S77631Y266BGV Datasheet - Page 386

• Manufacturer Part Number: R5S77631Y266BGV
• Description: IC SUPERH MPU ROMLESS 499BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7780r

Specifications of R5S77631Y266BGV

• Core Processor: SH-4A
• Core Size: 32-Bit
• Speed: 266MHz
• Connectivity: Audio Codec, I²C, MMC, SCI, SIM, SIO, SSI, USB
• Peripherals: DMA, LCD, POR, WDT
• Number Of I /o: 107
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.15 V ~ 1.35 V
• Data Converters: A/D 4x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 499-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

Section 10 SuperHyway Bus Bridge (SBR)
10.2.2
PRPRICR controls the SuperHyway bus access priority given to the CPU and the other function
modules.
Rev. 2.00 May 22, 2009 Page 316 of 1982
REJ09B0256-0200
Initial value:
Initial value:
Bit
31 to 1 
0
R/W:
R/W:
Bit:
Bit:
Bit Name
SBAPR
SuperHyway Bus Priority Control Resister (PRPRICR)
31
15
−
−
R
0
R
0
−
30
14
−
R
R
0
0
Initial
Value
All 0
1
29
13
−
−
R
R
0
0
28
−
12
−
R
R
0
0
R/W
R
R/W
27
11
−
−
R
R
0
0
26
−
10
−
R
R
0
0
Description
Reserved
These bits are always read as 0. The write value should
always be 0.
SuperHyway Bus Access Priority
Sets whether to give the CPU priority over the other
function modules when accessing the SuperHyway bus.
0: The CPU is given the same priority as the other
1: The CPU is given priority over the other function
Note: With this bit set to 1, when both of the data area
function modules.
modules.
25
−
−
R
R
0
9
0
accessed by the CPU and the data area accessed
by the other function modules are placed in the
areas for slow accesses, the CPU may be given
priority, thus disabling accesses by the other
function modules. To avoid this, place the data area
accessed by the CPU or the other function modules
in the DDR-SDRAM area, or set this bit to 0.
24
−
−
R
R
0
8
0
23
−
−
R
R
0
7
0
22
−
−
R
R
0
6
0
21
−
−
R
R
0
5
0
20
−
−
R
R
0
4
0
19
−
−
R
R
0
3
0
18
−
R
−
R
0
2
0
17
−
−
R
R
0
1
0
SBAPR
R/W
16
−
R
0
0
1