参数资料
型号: DSPB56366AG120
厂商: Freescale Semiconductor
文件页数: 89/110页
文件大小: 0K
描述: IC DSP 24BIT AUD 120MHZ 144-LQFP
产品变化通告: Product Discontinuation 24/Feb/2012
标准包装: 60
系列: DSP56K/Symphony
类型: 音频处理器
接口: 主机接口,I²C,SAI,SPI
时钟速率: 120MHz
非易失内存: ROM(240 kB)
芯片上RAM: 69kB
电压 - 输入/输出: 3.30V
电压 - 核心: 3.30V
工作温度: -40°C ~ 110°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
DSP56366 Technical Data, Rev. 3.1
2-4
Freescale Semiconductor
2.4
Clock and PLL
2.5
External Memory Expansion Port (Port A)
When the DSP56366 enters a low-power standby mode (stop or wait), it releases bus mastership and
tri-states the relevant port A signals: A0–A17, D0–D23, AA0/RAS0–AA2/RAS2, RD, WR, BB, CAS.
GNDD (4)
Data Bus Ground—GNDD is an isolated ground for sections of the data bus I/O drivers. This connection
must be tied externally to all other chip ground connections. The user must provide adequate external
decoupling capacitors. There are four GNDD connections.
GNDC (2)
Bus Control Ground—GNDC is an isolated ground for the bus control I/O drivers. This connection must
be tied externally to all other chip ground connections. The user must provide adequate external
decoupling capacitors. There are two GNDC connections.
GNDH
Host Ground—GNDh is an isolated ground for the HD08 I/O drivers. This connection must be tied
externally to all other chip ground connections. The user must provide adequate external decoupling
capacitors. There is one GNDH connection.
GNDS (2)
SHI, ESAI, ESAI_1, DAX and Timer Ground—GNDS is an isolated ground for the SHI, ESAI, ESAI_1,
DAX and Timer. This connection must be tied externally to all other chip ground connections. The user
must provide adequate external decoupling capacitors. There are two GNDS connections.
Table 2-4 Clock and PLL Signals
Signal
Name
Type
State
during
Reset
Signal Description
EXTAL
Input
External Clock Input—An external clock source must be connected to EXTAL in order
to supply the clock to the internal clock generator and PLL.
This input cannot tolerate 5 V.
PCAP
Input
PLL Capacitor—PCAP is an input connecting an off-chip capacitor to the PLL filter.
Connect one capacitor terminal to PCAP and the other terminal to VCCP.
If the PLL is not used, PCAP may be tied to VCC, GND, or left floating.
PINIT/NMI
Input
PLL Initial/Nonmaskable Interrupt—During assertion of RESET, the value of
PINIT/NMI is written into the PLL Enable (PEN) bit of the PLL control register,
determining whether the PLL is enabled or disabled. After RESET de assertion and
during normal instruction processing, the PINIT/NMI Schmitt-trigger input is a
negative-edge-triggered nonmaskable interrupt (NMI) request internally synchronized
to internal system clock.
This input cannot tolerate 5 V.
Table 2-3 Grounds (continued)
Ground Name
Description
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