參數(shù)資料
型號: MC68EC060RC66
廠商: Freescale Semiconductor
文件頁數(shù): 21/128頁
文件大?。?/td> 0K
描述: IC MPU 32BIT 66MHZ 206-PGA
標(biāo)準(zhǔn)包裝: 10
系列: M680x0
處理器類型: M680x0 32-位
速度: 66MHz
電壓: 3.3V
安裝類型: 通孔
封裝/外殼: 206-BEPGA
供應(yīng)商設(shè)備封裝: 206-PGA(47.25x47.25)
包裝: 托盤
Caches
5-18
M68060 USER’S MANUAL
MOTOROLA
Read misses and write misses to copyback pages cause the cache controller to read a new
cache line from memory into the cache. If available, an invalid line in the selected set is
updated with the tag and data from memory. The line state then changes from invalid to valid
by setting the V-bit for the line. If all lines in the set are already valid or dirty, the pseudo
round-robin replacement algorithm is used to select one of the four lines and replace the tag
and data contents of the line with the new line information. Before replacement, dirty lines
are temporarily buffered and later copied back to memory after the new line has been read
from memory. Snoops always check both the push buffer and the cache. Figure 5-7 illus-
trates the three possible states for a data cache line, with the possible transitions caused by
either the processor or snooped accesses. Transitions are labeled with a capital letter, indi-
cating the previous state, followed by a number indicating the specific case listed in Table
Figure 5-7. Data Cache Line State Diagrams
WI1— CPU READ MISS
WI6—CPUSH
WV4—CPU WRITE HIT
WV5— CINV
WV7—SNOOP HIT
WV6— CPUSH
WI5—CINV
WI3—CPU WRITE MISS
WV3—CPU WRITE MISS
WV2—CPU READ HIT
WV1—CPU READ MISS
COPYBACK
CI6— CPUSH
CI5— CINV
CV2—CPU READ HIT
CV1—CPU READ MISS
CD3—CPU WRITE MISS
CD2— CPU READ HIT
CD4—CPU WRITE HIT
CV5—CINV
CV7—SNOOP HIT
CV6—CPUSH
CI1—CPU READ MISS
CD1—CPU
CD5—CINV
CD7—SNOOP HIT
CD6—CPUSH
CV3—CPU WRITE MISS
CV4—CPU WRITE HIT
CI3— CPU
COPYBACK CACHING MODE
WRITETHROUGH CACHING MODE
INVALID
COPYBACK
VALID
COPYBACK
DIRTY
WRITE-
THROUGH
INVALID
VALID
WRITE-
THROUGH
WRITE MISS
READ MISS
相關(guān)PDF資料
PDF描述
MC7447AVU1420LB IC MPU RISC 32BIT 360-BGA
MC8640DTVU1000HE IC MPU DUAL CORE E600 1023FCCBGA
FH40-60S-0.5SV CONN FPC/FFC 60POS .5MM VERT SMD
MC8640DTHX1000HE IC DUAL CORE PROCESSOR 1023-CBGA
MC7457RX1000NC IC MPU RISC 32BIT 483FCCBGA
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68EC060RC75 功能描述:微處理器 - MPU 32B W/ CACHE RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
MC68EC060ZU50 功能描述:IC MPU 68K 50MHZ 304-TBGA RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微處理器 系列:M680x0 標(biāo)準(zhǔn)包裝:1 系列:MPC85xx 處理器類型:32-位 MPC85xx PowerQUICC III 特點(diǎn):- 速度:1.2GHz 電壓:1.1V 安裝類型:表面貼裝 封裝/外殼:783-BBGA,F(xiàn)CBGA 供應(yīng)商設(shè)備封裝:783-FCPBGA(29x29) 包裝:托盤
MC68EC060ZU66 功能描述:微處理器 - MPU 32B W/ CACHE RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
MC68EC060ZU75 功能描述:微處理器 - MPU 32B W/ CACHE RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
MC68EN302 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Integrated Multiprotocol Processor with Ethernet