Motorola DSP56305 User Manual page 83

Signal Name Type
HSTOP Input/
Output
HWR/HRW Input
HIDSEL Input
HRD/HDS Input
MOTOROLA
Table 2-10 Host Interface (Continued)
State
During
Reset
Tri-stated Host Stop—When the HI32 is programmed to
interface a PCI bus and the HI function is selected,
this is the Host Stop signal.
Host Write/Host Read-Write—When HI32 is
programmed to interface a universal non-PCI bus
and the HI function is selected, this signal is Host
Write/Host Read-Write Schmitt-trigger input.
Port B—When the HI32 is configured as GPIO
through the DCTR, this signal is internally
disconnected.
This input is 5 V tolerant.
Input Host Initialization Device Select—When the HI32
is programmed to interface a PCI bus and the HI
function is selected, this is the Host Initialization
Device Select signal.
Host Read/Host Data Strobe—When HI32 is
programmed to interface a universal non-PCI bus
and the HI function is selected, this signal is Host
Data Read/Host Data Strobe Schmitt-trigger
input.
Port B—When the HI32 is configured as GPIO
through the DCTR, this signal is internally
disconnected.
This input is 5 V tolerant.
DSP56305 User's Manual
Signal/Connection Descriptions
Host Interface (HI32)
Signal Description
2-25