參數(shù)資料
型號(hào): D950-CORE
廠商: 意法半導(dǎo)體
元件分類: 數(shù)字信號(hào)處理
英文描述: 16-Bit Fixed Point Digital Signal Processor DSP Core
中文描述: 16位定點(diǎn)數(shù)字信號(hào)處理器DSP核
文件頁(yè)數(shù): 68/89頁(yè)
文件大?。?/td> 560K
代理商: D950-CORE
68/89
D950-Core
7.2.2 I/O interface
In this section, the terms input and output are related to BSU, and the terms internal and
external are related to the AS-DSP.
The BSU I/O interface signals are of two types:
On the D950-Core side:
IA0/IA15 (I address bus) and ID0/ID15 (I data bus) with their associated control
signals:
IRD (read / input)
IWR (write / input)
IBS (bus strobe / input)
XA0/XA15 (X address bus) and XD0/XD15 (X data bus) with their associated control
signals:
XRD (read / input)
XWR (write /input)
XBS (bus strobe / input)
YA0/YA15 (Y address bus) and YD0/YD15 (Y data bus) with their associated control
signals:
YRD (read / input)
YWR (write / input)
YBS (bus strobe / input)
DTACK (data transfer acknowledge / output)
BSU_CLK (clock / input)
On the internal memory side:
IID (internal I-memory space deselect / output)
IXD (internal X-memory space deselect / output)
IYD (internal Y-memory space deselect / output)
8
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