參數(shù)資料
型號: DSP56857BUE
廠商: Freescale Semiconductor
文件頁數(shù): 51/53頁
文件大小: 0K
描述: IC DSP 16BIT 120MHZ 100-LQFP
標(biāo)準(zhǔn)包裝: 90
系列: 568xx
核心處理器: 56800E
芯體尺寸: 16-位
速度: 120MHz
連通性: SCI,SPI,SSI
外圍設(shè)備: DMA,POR,WDT
輸入/輸出數(shù): 47
程序存儲器容量: 80KB(40K x 16)
程序存儲器類型: SRAM
RAM 容量: 24K x 16
電壓 - 電源 (Vcc/Vdd): 1.62 V ~ 1.98 V
振蕩器型: 外部
工作溫度: -40°C ~ 85°C
封裝/外殼: 100-LQFP
包裝: 托盤
Introduction
56857 Technical Data, Rev. 6
Freescale Semiconductor
7
Part 2 Signal/Connection Descriptions
2.1 Introduction
The input and output signals of the 56857 are organized into functional groups, as shown in Table 2-1 and
as illustrated in Figure 2-1. In Table 3-1 each table row describes the package pin and the signal or signals
present.
1. VDD = VDD CORE, VSS = VSS CORE, VDDIO= VDD IO, VSSIO = VSS IO, VDDA = VDD ANA, VSSA = VSS ANA
2. MODE A, MODE B and MODE C can be used as GPIO after the bootstrap process has completed.
3. The following Host Interface signals are multiplexed: HRWB to HRD, HDS to HWR, HREQ to HTRQ and HACK to HRRQ.
Table 2-1 Functional Group Pin Allocations
Functional Group
Number of Pins
Power (VDD, VDDIO, or VDDA)
(8, 12, 1)1
Ground (VSS, VSSIO,or VSSA)
(5, 12, 2)1
PLL and Clock
3
Chip Select Logic used as dedicated GPIO
4
Interrupt and Program Control
72
Host Interface (HI)*
163
Enhanced Synchronous Serial Interface (ESSI0) Port*
6
Enhanced Synchronous Serial Interface (ESSI1) Port*
6
Serial Communications Interface (SCI0) Ports*
2
Serial Communications Interface (SCI1) Ports*
2
Serial Peripheral Interface (SPI) Port*
4
Quad Timer Module Port*
4
JTAG/Enhanced On-Chip Emulation (EOnCE)
6
*Alternately, GPIO pins
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