HD6417712BPV Renesas Electronics America, HD6417712BPV Datasheet - Page 274

• Manufacturer Part Number: HD6417712BPV
• Description: MPU 1.5/3.3V 0K PB-FREE 256-BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH Ethernetr

Specifications of HD6417712BPV

• Core Processor: SH-3 DSP
• Core Size: 32-Bit
• Speed: 200MHz
• Connectivity: EBI/EMI, Ethernet, FIFO, SCI, SIO
• Peripherals: DMA, POR, WDT
• Number Of I /o: 24
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 256-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

Section 6 Cache
6.4.3
Invalidating Specific Entries: Specific cache entries can be invalidated by writing 0 to the
entry’s V bit in the memory-mapped cache access. When the A bit is 1, the tag address specified
by the write data is compared to the tag address within the cache selected by the entry address, and
a match is found, the entry is written back if the entry’s U bit is 1 and the V bit and U bit specified
by the write data are written. If no match is found, there is no operation. In the example shown
below, R0 specifies the write data and R1 specifies the address.
Reading the Data of a Specific Entry: To read the data field of a specific entry is enabled by the
memory-mapped cache access. The longword indicated in the data field of the data array in figure
6.4 or 6.5 is read into the register. In the example shown below, R0 specifies the address and R1
shows what is read.
Rev. 1.00 Dec. 27, 2005 Page 230 of 932
REJ09B0269-0100
; R0=H'01100010; VPN=B'0000 0001 0001 0000 0000 00, U=0, V=0
; R1=H'F0000088; address array access, entry=B'00001000, A=1
;
MOV.L R0,@R1
; R0=H'F100 004C; data array access, entry=B'00000100
; Way = 0, longword address = 3
;
MOV.L @R0,R1 ; Longword 3 is read.
Usage Examples