HD6417709SF133B Renesas Electronics America, HD6417709SF133B Datasheet - Page 159
HD6417709SF133B
Manufacturer Part Number
HD6417709SF133B
Description
IC SUPERH MPU ROMLESS 208LQFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7700r
Datasheet
1.D6417709SBP167BV.pdf
(809 pages)
Specifications of HD6417709SF133B
Core Processor
SH-3
Core Size
32-Bit
Speed
133MHz
Connectivity
EBI/EMI, FIFO, IrDA, SCI, SmartCard
Peripherals
DMA, POR, WDT
Number Of I /o
96
Program Memory Type
ROMless
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.65 V ~ 2.05 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
208-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Program Memory Size
-
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The following three operations on the address array are possible.
(1) Address Array Read
Reads the tag address, LRU, U bit, and V bit from the entry that corresponds to the entry address
and w`ay that were specified in the address field. No associative operation will be performed,
regardless of the value of the associative bit (the A bit).
(2) Address Array Write (without Associative Operation)
Writes the tag address, LRU, U bit, and V bit specified in the data field to the entry that
corresponds to the entry address and way that were specified in the address field. The associative
bit (A bit) of the address field must be set to 0. An attempt to write to a cache line for which both
the U bit and V bit are set results in a write-back for that cache line. The tag address, LRU, U bit,
and V bit specified in the data field are then written. Note that, when a 0 is written to the V bit, a 0
should always be written to the U bit of the same entry, too.
(3) Address Array Write (with Associative Operation)
The associative bit (A bit) in the address field indicates whether the addresses are compared
during writing. With the A bit set to 1, all 4 ways for the entry specified in the address field will be
compared to the tag address specified in the data field for a match. The values of the U bit and V
bit specified in the data field will be written to the way that has a hit. However, the tag address and
the LRU will not be changed. If no way receives a hit, writing does not take place and the result is
no operation.
This operation is used to invalidate the address specification for a cache. Write back will take
place when the U bit of the entry that received a hit is 1. Note that, when a 0 is written to the V bit,
a 0 should always be written to the U bit of the same entry, too.
5.4.2
Data Array
The address array is mapped to H'F1000000 to H'F1FFFFFF. To access an element of the data
array, the 32-bit address field (for read/write access) and 32-bit data field (for write access) must
be specified. The address field specifies the information that selects the entry to be accessed; the
data field specifies the longword data to be written to the data array.
In the address field, specify the entry's address in bits 11-4, L in bits 3-2 to indicate the longword's
position within a line (which consists of 16 bytes), W in bits 13-12 to select the way, and H'F1 in
bits 31-24 to indicate access to the data array. The L bits (3-2) specification is in the following
form: 00 is longword 0, 01 is longword 1, 10 is longword 2, and 11 is longword 3. Settings for the
W bits (13-12) are as follows: 00 is way 0, 01 is way 1, 10 is way 2, and 11 is way 3. Since access
is not allowed crossing longword boundaries, always set 00 in bits 1-0 of the address field.
Rev. 5.00, 09/03, page 113 of 760
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