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參數(shù)資料
型號(hào): ADSP-21266SKSTZ-2C
廠商: ANALOG DEVICES INC
元件分類: 數(shù)字信號(hào)處理
英文描述: SHARC Embedded Processor
中文描述: 16-BIT, 66.67 MHz, OTHER DSP, PQFP144
封裝: ROHS COMPLIANT, MS-026BFB, LQFP-144
文件頁(yè)數(shù): 14/44頁(yè)
文件大?。?/td> 426K
代理商: ADSP-21266SKSTZ-2C
Rev. B
|
Page 14 of 44
|
May 2005
ADSP-21266
ADDRESS DATA PINS AS FLAGS
To use these pins as flags (FLAG15
0) set (=1) Bit 20 of the
SYSCTL register and disable the parallel port.
Boot Modes
CORE INSTRUCTION RATE TO CLKIN RATIO MODES
ADDRESS DATA MODES
Table 7
shows the functionality of the AD pins for 8-bit and
16-bit transfers to the parallel port. For 8-bit data transfers, ALE
latches address bits A23
A8 when asserted, followed by address
bits A7
A0 and data bits D7
D0 when deasserted. For 16-bit
data transfers, ALE latches address bits A15
A0 when asserted,
followed by data bits D15
D0 when deasserted.
Table 4. AD15
0 to FLAG Pin Mapping
AD Pin
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
AD8
AD9
AD10
AD11
AD12
AD13
AD14
AD15
Flag Pin
FLAG8
FLAG9
FLAG10
FLAG11
FLAG12
FLAG13
FLAG14
FLAG15
FLAG0
FLAG1
FLAG2
FLAG3
FLAG4
FLAG5
FLAG6
FLAG7
Table 5. Boot Mode Selection
BOOTCFG1
0
00
01
10
11
Booting Mode
SPI Slave Boot
SPI Master Boot
Parallel Port Boot via EPROM
Internal Boot Mode (ROM code only)
Table 6. Core Instruction Rate/CLKIN Ratio Selection
CLKCFG1
0
00
01
10
11
Core to CLKIN Ratio
3:1
16:1
8:1
Reserved
Table 7. Address/Data Mode Selection
EP Data
Mode
8-bit
8-bit
16-bit
16-bit
ALE
Asserted
Deasserted
Asserted
Deasserted
AD7
0
Function
A15
8
D7
0
A7
0
D7
0
AD15
8
Function
A23
16
A7
0
A15
8
D15
8
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ADSP-21266SKSTZ-2D 功能描述:IC DSP 32BIT 150MHZ 144-LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - DSP(數(shù)字式信號(hào)處理器) 系列:SHARC® 標(biāo)準(zhǔn)包裝:2 系列:StarCore 類型:SC140 內(nèi)核 接口:DSI,以太網(wǎng),RS-232 時(shí)鐘速率:400MHz 非易失內(nèi)存:外部 芯片上RAM:1.436MB 電壓 - 輸入/輸出:3.30V 電壓 - 核心:1.20V 工作溫度:-40°C ~ 105°C 安裝類型:表面貼裝 封裝/外殼:431-BFBGA,F(xiàn)CBGA 供應(yīng)商設(shè)備封裝:431-FCPBGA(20x20) 包裝:托盤
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