Motorola DSP56305 User Manual page 82

Signal/Connection Descriptions
Host Interface (HI32)
Signal Name Type
HREQ Output
HTA Output
HSERR Output,
open
drain
HIRQ Output,
open
drain
2-24
Table 2-10 Host Interface (Continued)
State
During
Reset
Tri-stated Host Bus Request—When the HI32 is
programmed to interface a PCI bus and the HI
function is selected, this is the Host Bus Request
signal.
Host Transfer Acknowledge—When HI32 is
programmed to interface a universal non-PCI bus
and the HI function is selected, this signal is Host
Transfer Acknowledge output.
Port B—When the HI32 is configured as GPIO
through the DCTR, this signal is internally
disconnected.
This input is 5 V tolerant.
Tri-stated Host System Error—When the HI32 is
programmed to interface a PCI bus and the HI
function is selected, this is the Host System Error
signal.
Host Interrupt Request—When HI32 is
programmed to interface a universal non-PCI bus
and the HI function is selected, this signal is Host
Interrupt Request output.
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 Description
MOTOROLA