- 您现在的位置：买卖IC网 > PDF目录239729 > IDT79RC64T575250DPI (INTEGRATED DEVICE TECHNOLOGY INC) 64-BIT, 250 MHz, RISC PROCESSOR, PQFP208 PDF资料下载
参数资料
| 型号： | IDT79RC64T575250DPI |
| 厂商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 64-BIT, 250 MHz, RISC PROCESSOR, PQFP208 |
| 封装： | 28 X 28 MM, 3.40 MM HEIGHT, PLASTIC, QFP-208 |
| 文件页数： | 23/28页 |
| 文件大小： | 571K |
| 代理商： | IDT79RC64T575250DPI |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页当前第23页第24页第25页第26页第27页第28页
4 of 28
December 14, 2001
79RC64574 79RC64575
ferring data between the processor and memory at a peak rate of
1000MB/sec. A boot-time selectable option to run the system interface
as 32-bits wide—using basically the same protocols as the 64-bit
system—is also supported.
A boot-time mode control interface initializes fundamental
processor modes and is a serial interface that operates at a very low
frequency (SysClock divided by 256). This low-frequency operation
allows the initialization information to be kept in a low-cost EPROM;
alternatively, the twenty-or-so bits could be generated by the system
interface ASIC or a simple PAL. The boot-time serial stream is shown in
Serial
Bit Description
Value & Mode Setting
0
Reserved
Must be set to 0.
1:4
Transmit-data-
pattern.
Bit 4 is MSB
64-bit bus width:
0: DDDD
1: DDxDDx
2: DDxxDDxx
3: DxDxDxDx
4: DDxxxDDxxx
5: DDxxxxDDxxxx
6: DxxDxxDxxDxx
7: DDxxxxxxDDxxxxxx
8: DxxxDxxxDxxxDxxx
9-15: Reserved. Must not be selected.
32-bit bus width:
0: WWWWWWWW
1: WWxWWxWWxWWx
2: WWxxWWxxWWxxWWxx
3: WxWxWxWxWxWxWxWx
4: WWxxxWWxxxWWxxxWWxxx
5: WWxxxxWWxxxxWWxxxxWWxxxx
6: WxxWxxWxxWxxWxxWxxWxxWxx
7: WWxxxxxxWWxxxxxxWWxxxxxxWWxxxxxx
8: WxxxWxxxWxxxWxxxWxxxWxxxWxxxWxxx
9-15: Reserved. Must not be selected.
5:7
PClock-to-
SysClk-Ratio.
Bit 7 is MSB
0: 2
1: 3
2: 4
3: 5
4: 6
5: 7
6: 8
7: Reserved
8
Endianness
0: Little endian
1: Big endian
9:10
Non-block write
Mode. Bit 10 is
MSB
00: R4400 compatible
01: Reserved
10: Pipelined-Write-Mode
11: Write-Reissue-Mode
Table 3 Boot-time Mode Stream (Page 1 of 2)
The clocking interface allows the CPU to be easily mated with
external reference clocks. The CPU input clock is the bus reference
clock and can be between 33 and 125MHz. An on-chip phase-locked-
loop (PLL) generates the pipeline clock (PClock) through multiplication
of the system interface clock by values of 2,3,4,5,6,7 or 8, as defined at
system reset. This allows the pipeline clock to be implemented at a
significantly higher frequency than the system interface clock. The
RC64574/575 support both single data (one byte through full CPU bus
width) and 8-word block transfers on the SysAD bus.
The RC64574/575 implement additional write protocols that
double the effective write bandwidth. The write re-issue has a repeat
rate of 2 cycles per write. Pipelined writes have the same 2-cycle per
write repeat rate, but can issue an additional write after WrRdy* de-
asserts.
11
TimerIntEn
Timer interrupt settings:
0: Enable Timer Interrupt on Int(5)
1: Disable Timer Interrupt on Int(5)
12
System Interface
Bus Width.
Interface bus width control settings:
0: 64-bit system interface
1: 32-bit system interface
13:14
Drv_Out
Bit 14 is MSB
Slew rate control of the output drivers:
10: 100% strength (fastest)
11: 83% strength
00: 67% strength
01: 50% strength (slowest)
15:17
Write address to
write data delay.
From 0 to 7 SysClk cycles:
0: AD...
1: AxD...
2: AxxD...
3: AxxxD...
4: AxxxxD...
5: AxxxxxD...
6: AxxxxxxD...
7: AxxxxxxxD...
18
Reserved
User must select ‘0’
19
Extend
Multiplication
Repeat Rate.
Initial setting of the “Fast Multiply” bit.
0: Enable Fast Multiply
1: Do not Enable Fast Multiply
Note: For pipeline speeds >250MHz, this bit must
be set to ‘1’.
20:24
Reserved
User must select ‘0’
25:26
System
configuration
identifier.
Software visible in processorConfig[21:20]
0: Config[21:20] = Mode Bit [25:26]
Must be set to 0.
27:256
Reserved
User must select ‘0’
Serial
Bit Description
Value & Mode Setting
Table 3 Boot-time Mode Stream (Page 2 of 2)
相关PDF资料 |
PDF描述 |
|---|---|
| IDT79R3081-40DL8 | 32-BIT, 40 MHz, RISC PROCESSOR, PQCC84 |
| ICS84325EM | 250 MHz, OTHER CLOCK GENERATOR, PDSO24 |
| ICS84427BM | 625 MHz, OTHER CLOCK GENERATOR, PDSO24 |
| ICS601G-21IT | 220 MHz, OTHER CLOCK GENERATOR, PDSO16 |
| IBM25PPC405GPR3DB266Z | 32-BIT, 266 MHz, RISC PROCESSOR, PBGA456 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| IDT79RC64V474-180DZ | 功能描述:IC MPU 64BIT EMB 180MHZ 128-QFP RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微处理器 系列:- 标准包装:2 系列:MPC8xx 处理器类型:32-位 MPC8xx PowerQUICC 特点:- 速度:133MHz 电压:3.3V 安装类型:表面贴装 封装/外壳:357-BBGA 供应商设备封装:357-PBGA（25x25） 包装:托盘 |
| IDT79RC64V474-200DZ | 功能描述:IC MPU 64BIT EMB 200MHZ 128-QFP RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微处理器 系列:- 标准包装:2 系列:MPC8xx 处理器类型:32-位 MPC8xx PowerQUICC 特点:- 速度:133MHz 电压:3.3V 安装类型:表面贴装 封装/外壳:357-BBGA 供应商设备封装:357-PBGA（25x25） 包装:托盘 |
| IDT79RC64V475-180DP | 功能描述:IC MPU 64BIT EMB 180MHZ 208-QFP RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微处理器 系列:- 标准包装:2 系列:MPC8xx 处理器类型:32-位 MPC8xx PowerQUICC 特点:- 速度:133MHz 电压:3.3V 安装类型:表面贴装 封装/外壳:357-BBGA 供应商设备封装:357-PBGA（25x25） 包装:托盘 |
| IDT79RC64V475-200DP | 功能描述:IC MPU 64BIT EMB 200MHZ 208-QFP RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微处理器 系列:- 标准包装:2 系列:MPC8xx 处理器类型:32-位 MPC8xx PowerQUICC 特点:- 速度:133MHz 电压:3.3V 安装类型:表面贴装 封装/外壳:357-BBGA 供应商设备封装:357-PBGA（25x25） 包装:托盘 |
| IDT79RV4640-133DU | 功能描述:IC SGL BOARD COMPUTER 128-QFP RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微处理器 系列:- 标准包装:2 系列:MPC8xx 处理器类型:32-位 MPC8xx PowerQUICC 特点:- 速度:133MHz 电压:3.3V 安装类型:表面贴装 封装/外壳:357-BBGA 供应商设备封装:357-PBGA（25x25） 包装:托盘 |
发布紧急采购，3分钟左右您将得到回复。