參數(shù)資料
型號: SPAKD56366PV120
廠商: MOTOROLA INC
元件分類: 數(shù)字信號處理
英文描述: 24-BIT, 120 MHz, OTHER DSP, PQFP144
封裝: TQFP-144
文件頁數(shù): 55/147頁
文件大小: 2156K
代理商: SPAKD56366PV120
Signal/Connection Descriptions
PARALLEL HOST INTERFACE (HDI08)
MOTOROLA
DSP56366 Advance Information
1-11
Table 1-9 Host Interface
Signal Name
Type
State during
Reset
Signal Description
H0–H7
Input/
output
Host Data—When HDI08 is programmed to interface a nonmultiplexed
host bus and the HI function is selected, these signals are lines 0–7 of the
bidirectional, tri-state data bus.
HAD0–HAD7
Input/
output
Host Address/Data—When HDI08 is programmed to interface a
multiplexed host bus and the HI function is selected, these signals are lines
0–7 of the address/data bidirectional, multiplexed, tri-state bus.
PB0–PB7
Input, output, or
disconnected
GPIO
disconnected
Port B 0–7—When the HDI08 is configured as GPIO, these signals are
individually programmable as input, output, or internally disconnected.
The default state after reset for these signals is GPIO disconnected.
These inputs are 5 V tolerant.
HA0
Input
GPIO
disconnected
Host Address Input 0—When the HDI08 is programmed to interface a
nonmultiplexed host bus and the HI function is selected, this signal is line
0 of the host address input bus.
HAS/HAS
Input
Host Address Strobe—When HDI08 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, but is configured active-low (HAS) following
reset.
PB8
Input, output, or
disconnected
Port B 8—When the HDI08 is configured as GPIO, this signal is
individually programmed as input, output, or internally disconnected.
The default state after reset for this signal is GPIO disconnected.
This input is 5 V tolerant.
HA1
Input
GPIO
disconnected
Host Address Input 1—When the HDI08 is programmed to interface a
nonmultiplexed host bus and the HI function is selected, this signal is line
1 of the host address (HA1) input bus.
HA8
Input
Host Address 8—When HDI08 is programmed to interface a multiplexed
host bus and the HI function is selected, this signal is line 8 of the host
address (HA8) input bus.
PB9
Input, output, or
disconnected
Port B 9—When the HDI08 is configured as GPIO, this signal is
individually programmed as input, output, or internally disconnected.
The default state after reset for this signal is GPIO disconnected.
This input is 5 V tolerant.
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