参数资料
型号: ADSP-21368KBPZ-2A
厂商: Analog Devices Inc
文件页数: 35/64页
文件大小: 0K
描述: IC DSP 32BIT 333MHZ 256-BGA
产品培训模块: SHARC Processor Overview
标准包装: 1
系列: SHARC®
类型: 浮点
接口: DAI,DPI
时钟速率: 333MHz
非易失内存: ROM(768 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: 256-LBGA 裸露焊盘
供应商设备封装: 256-BGA(27x27)
包装: 托盘
Rev. F
|
Page 40 of 64
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October 2013
Parallel Data Acquisition Port (PDAP)
The timing requirements for the PDAP are provided in
Table 33. PDAP is the parallel mode operation of Channel 0 of
the IDP. For details on the operation of the IDP, see the IDP
chapter of the ADSP-21368 SHARC Processor Hardware
Reference. Note that the 20 bits of external PDAP data can be
provided through the external port DATA31–12 pins or the
DAI pins.
Table 33. Parallel Data Acquisition Port (PDAP)
Parameter
Min
Max
Unit
Timing Requirements
t
SPHOLD
1
PDAP_HOLD Setup Before PDAP_CLK Sample Edge
2.5
ns
t
HPHOLD
1
PDAP_HOLD Hold After PDAP_CLK Sample Edge
2.5
ns
t
PDSD
1
PDAP_DAT Setup Before SCLK PDAP_CLK Sample Edge
3.85
ns
t
PDHD
1
PDAP_DAT Hold After SCLK PDAP_CLK Sample Edge
2.5
ns
t
PDCLKW
Clock Width
(t
PCLK × 4) ÷ 2 – 3
ns
t
PDCLK
Clock Period
t
PCLK × 4
ns
Switching Characteristics
t
PDHLDD
Delay of PDAP Strobe After Last PDAP_CLK Capture Edge for a Word
2 × t
PCLK + 3
ns
t
PDSTRB
PDAP Strobe Pulse Width
2 × t
PCLK – 1
ns
1 Data Source pins are DATA31–12, or DAI pins. Source pins for SCLK and FS are: 1) DATA11–10 pins, 2) DAI pins.
Figure 27. PDAP Timing
DAI_P20–1
(PDAP_CLK)
SAMPLE EDGE
DAI_P20–1
(PDAP_HOLD)
DAI_P20–1
(PDAP_STROBE)
tPDSTRB
tPDHLDD
tPDHD
tPDSD
tSPHOLD
tHPHOLD
tPDCLK
tPDCLKW
DAI_P20–1/
ADDR23–4
(PDAP_DATA)
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