HD6417750SF167V Renesas Electronics America, HD6417750SF167V Datasheet - Page 1145
HD6417750SF167V
Manufacturer Part Number
HD6417750SF167V
Description
MPU 3V 16K PB-FREE 208-QFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7750r
Datasheet
1.D6417750RBP240DV.pdf
(1164 pages)
Specifications of HD6417750SF167V
Core Processor
SH-4
Core Size
32-Bit
Speed
167MHz
Connectivity
EBI/EMI, FIFO, SCI, SmartCard
Peripherals
DMA, POR, WDT
Number Of I /o
28
Program Memory Type
ROMless
Ram Size
24K x 8
Voltage - Supply (vcc/vdd)
1.6 V ~ 2 V
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
208-QFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD6417750SF167V
Manufacturer:
INTERSIL
Quantity:
18 720
Company:
Part Number:
HD6417750SF167V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 1145 of 1164
- Download datasheet (7Mb)
This LSI incorporates an on-chip buffer for holding instructions that have been read ahead of their
execution (prefetching of instructions). Therefore, do not allocate programs to memory in such a
way that instructions are in the last 20 bytes of any memory space. If a program is allocated in
such a way, the prefetching of instructions may lead to a bus access for reading an instruction from
beyond the memory space. The following shows a case in which such bus access is a problem.
Figure G.1 depicts a case in which the instruction (ADD) indicated by the program counter and the
instruction at the address H'04000002 are fetched simultaneously. The program is assumed to
branch to a region other than area 1 after the subsequent JMP instruction and delay slot instruction
have been executed.
In this case, a bus access to area 1 (instruction prefetch), which is not visible in the program flow,
may occur.
1. Side effects of the prefetching of instructions
2. Methods of preventing the invalid prefetching of instructions
Appendix G Prefetching of Instructions and its Side Effects
a. An external bus access caused by an instruction prefetch may cause malfunctions in
b. If no device responds to an external bus request that is triggered by an instruction prefetch,
a. Use an MMU.
b. Do not allocate programs so that they run into the last 20-byte region of any memory space.
external devices, such as FIFOs, that are connected to the region accessed.
execution may hang.
Area 0
Area 1
H'03FFFFF8
H'03FFFFFA
H'03FFFFFC
H'03FFFFFE
H'04000000
H'04000002
Address
Figure G.1 Instruction Prefetch
ADD R1,R4
JMP @R2
NOP
NOP
Appendix G Prefetching of Instructions and its Side Effects
.
.
.
.
.
.
Rev.7.00 Oct. 10, 2008 Page 1059 of 1074
PC (Program counter)
Address of instruction for prefetching
REJ09B0366-0700
Related parts for HD6417750SF167V
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
KIT STARTER FOR M16C/29
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR R8C/2D
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
R0K33062P STARTER KIT
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR R8C/23 E8A
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR R8C/25
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER H8S2456 SHARPE DSPLY
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR R8C38C
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR R8C35C
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR R8CL3AC+LCD APPS
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR RX610
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR R32C/118
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT DEV RSK-R8C/26-29
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR SH7124
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR H8SX/1622
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT DEV FOR SH7203
Manufacturer:
Renesas Electronics America
Datasheet: