spakdsp301vl100 Freescale Semiconductor, Inc, spakdsp301vl100 Datasheet - Page 17

• Manufacturer Part Number: spakdsp301vl100
• Description: Dsp56301 24-bit Digital Signal Processor
• Manufacturer: Freescale Semiconductor, Inc

Freescale Semiconductor
HPAR
HDAK
HPERR
HDRQ
HGNT
HAEN
HREQ
HTA
Signal Name
Input/
Output
Input
Input/
Output
Output
Input
Input
Output
Output
Type
Tri-stated
Tri-stated
Input
Tri-stated
State During
Table 1-11.
Reset
DSP56301 Technical Data, Rev. 10
Host Parity
When the HI32 is programmed to interface with a PCI bus and the HI function
is selected, this is the Host Parity signal.
Host DMA Acknowledge
When HI32 is programmed to interface with a universal, non-PCI bus and the
HI function is selected, this is the Host DMA Acknowledge Schmitt-trigger
signal.
Port B
When the HI32 is configured as GPIO through the DCTR, this signal is
internally disconnected.
This input is 5 V tolerant.
Host Parity Error
When the HI32 is programmed to interface with a PCI bus and the HI function
is selected, this is the Host Parity Error signal.
Host DMA Request
When HI32 is programmed to interface with a universal, non-PCI bus and the
HI function is selected, this is the Host DMA 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.
Host Bus Grant
When the HI32 is programmed to interface with a PCI bus and the HI function
is selected, this is the Host Bus Grant signal.
Host Address Enable
When HI32 is programmed to interface with a universal, non-PCI bus and the
HI function is selected, this is the Host Address Enable output signal.
Port B
When the HI32 is configured as GPIO through the DCTR, this signal is
internally disconnected.
This input is 5 V tolerant.
Host Bus Request
When the HI32 is programmed to interface with 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 with a
universal, non-PCI bus and the HI function is selected, this is the Host Data
Bus Enable signal. HTA can be programmed as active high or active low.
Port B
When the HI32 is configured as GPIO through the DCTR, this signal is
internally disconnected.
This input is 5 V tolerant.
Host Interface (Continued)
Signal Description
Host Interface (HI32)
1-13