參數(shù)資料
型號： MC56603APV60
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 數(shù)字信號處理
英文描述： 24-BIT, 60 MHz, OTHER DSP, PQFP144
封裝： PLASTIC, TQFP-144
文件頁數(shù)： 7/97頁
文件大小： 1080K
代理商： MC56603APV60
DSP56603A
Host Interface (HI08)
MOTOROLA
DSP56603A Technical Data Sheet
1-9
HOST INTERFACE (HI08)
The HI08 provides a fast parallel data to 8-bit port that can be connected directly to
the host bus. The HI08 supports a variety of standard buses, and can be directly
connected to a number of industry standard microcomputers, microprocessors, DSPs,
and DMA hardware. The direction and polarity of all pins on the HI08 is
programmable. All pins also have programmable GPIO functionality.
Table 1-7
Host Interface Signals
Signal Name
Signal Type
State
During
Reset
Signal Description
HD0HD7
HAD0
HAD7
PB0PB7
Bi-directional
Input or
Output
Tri-stated Host Data BusWhen the HI08 is programmed to interface
a non-multiplexed host bus and the HI function is selected,
these signals are lines 07 of the Host Data bidirectional tri-
state bus (HD0HD7).
Host Address and Data Bus
When the HI08 is
programmed to interface a multiplexed host bus and the HI
function is selected, these signals are lines 07 of the Host
Address/Data multiplexed bidirectional tri-state bus
(HAD0HAD7).
Port B 07
When the HI08 is configured as GPIO through
the HI08 Port Control Register (HPCR), these signals are
individually programmed as inputs or outputs through the
HI08 Data Direction Register (HDDR).
This pin is electrically disconnected internally during Stop
mode.
HA0
HAS/HAS
PB8
Input
Input or
Output
Tri-stated Host Address Input 0When the HI08 is programmed to
interface a non-multiplexed host bus and the HI function is
selected, this signal is line 0 of the Host Address input bus
(HA0).
Host Address Strobe
When the HI08 is programmed to
interface a multiplexed host bus and the HI function is
selected, this signal is the Host Address Strobe (HAS)
Schmitt-trigger input. The polarity of the address strobe is
programmable.
Port B 8
When the HI08 is configured as GPIO through the
HPCR, this signal is individually programmed as an input
or output through the HDDR.
This pin is electrically disconnected internally during Stop
mode.
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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