参数资料
型号: ADSP-21266SKSTZ-2D
厂商: Analog Devices Inc
文件页数: 34/60页
文件大小: 0K
描述: IC DSP 32BIT 150MHZ 144-LQFP
产品培训模块: SHARC Processor Overview
标准包装: 1
系列: SHARC®
类型: 浮点
接口: DAI,SPI
时钟速率: 200MHz
非易失内存: ROM(512 kB)
芯片上RAM: 256kB
电压 - 输入/输出: 3.30V
电压 - 核心: 1.20V
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 144-LQFP
供应商设备封装: 144-LQFP(20x20)
包装: 托盘
ADSP-21362/ADSP-21363/ADSP-21364/ADSP-21365/ADSP-21366
Parallel Data Acquisition Port (PDAP)
The timing requirements for the PDAP are provided in
Table 29 . PDAP is the parallel mode operation of Channel 0 of
the IDP. For details on the operation of the IDP, refer to the
ADSP-2136x SHARC Processor Hardware Reference , “Input
Data Port” chapter.
Table 29. Parallel Data Acquisition Port (PDAP)
Note that the most significant 16 bits of external 20-bit PDAP
data can be provided through either the parallel port AD15–0
pins or the DAI_P20–5 pins. The remaining 4 bits can only be
sourced through DAI_P4–1. The timing below is valid at the
DAI_P20–1 pins or at the AD15–0 pins.
Parameter
Timing Requirements
Min
Unit
t SPCLKEN 1
t HPCLKEN 1
t PDSD 1
t PDHD 1
t PDCLKW
t PDCLK
PDAP_CLKEN Setup Before PDAP_CLK Sample Edge
PDAP_CLKEN Hold After PDAP_CLK Sample Edge
PDAP_DAT Setup Before SCLK PDAP_CLK Sample Edge
PDAP_DAT Hold After SCLK PDAP_CLK Sample Edge
Clock Width
Clock Period
2.5
2.5
3.0
2.5
(t PCLK × 4) ÷ 2 – 3
t PCLK × 4
ns
ns
ns
ns
ns
ns
Switching Characteristics
t PDHLDD
t PDSTRB
Delay of PDAP Strobe After Last PDAP_CLK Capture Edge for a Word
PDAP Strobe Pulse Width
2 × t PCLK – 1
2 × t PCLK – 1.5
ns
ns
1
Data source pins are AD15–0 and DAI_P4–1, or DAI pins. Source pins for serial clock and frame sync are DAI pins.
DAI_P20–1
(PDAP_CLK)
DAI_P20–1
(PDAP_HOLD)
DAI_P20–1/
ADDR23–4
(PDAP_DATA)
SAMPLE EDGE
t PDCLKW
t SPHOLD
t PDSD
t PDCLK
t HPHOLD
t PDHD
DAI_P20–1
(PDAP_STROBE)
Figure 25. PDAP Timing
t PDHLDD
t PDSTRB
Rev. J |
Page 34 of 60 |
July 2013
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