HD6417751RF240V Renesas Electronics America, HD6417751RF240V Datasheet - Page 183

• Manufacturer Part Number: HD6417751RF240V
• Description: MPU 1.5/3.3V 0K PB-FREE 256-QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7750r

Specifications of HD6417751RF240V

• Core Processor: SH-4
• Core Size: 32-Bit
• Speed: 240MHz
• Connectivity: EBI/EMI, FIFO, SCI, SmartCard
• Peripherals: DMA, POR, WDT
• Number Of I /o: 39
• Program Memory Type: ROMless
• Ram Size: 48K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 256-QFP Exposed Pad, 256-eQFP, 256-HQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

On-chip I/O access
Data TLB protection
violation exception
Data TLB miss
VA is
in P4 area
00 or
01
exception
in copy-back mode
Cache access
W
Figure 3.10 Flowchart of Memory Access Using UTLB
No
R/W?
VA is
in P2 area
PR?
10
R
VPNs match
0
and V = 1
0
Data access to virtual address (VA)
CCR.OCE?
Yes
CCR.CB?
0 (User)
R/W?
0
R
11
1
VA is
in P1 area
1
in write-through mode
and CCR.OCE = 1
Initial page write
Cache access
W
exception
C = 1
WT?
D?
0
0
Yes
1
No
No
CCR.WT?
W
No
Rev.4.00 Oct. 10, 2008 Page 83 of 1122
1
and (MMUCR.SV = 0 or
and ASIDs match and
R/W?
3. Memory Management Unit (MMU)
MMUCR.AT = 1
entry matches
R
01 or 11
VPNs match
SR.MD = 0)
No
Only one
SR.MD?
SH = 0
V = 1
PR?
1 (Privileged)
Yes
Yes
Yes
Yes
VA is in P0, U0,
or P3 area
R/W?
Memory access
(Non-cacheable)
R
00 or 10
REJ09B0370-0400
Data TLB protection
violation exception
Data TLB multiple
No
W
hit exception