cx28500 Mindspeed Technologies, cx28500 Datasheet - Page 56

• Manufacturer Part Number: cx28500
• Description: Cx28500 Multichannel Synchronous Communications Controller
• Manufacturer: Mindspeed Technologies

CX28500’s Host interface performs the following major functions:
•
•
CX28500 does not support Function 1. The access to the EBUS is performed via a service request command,
which provides a better utilization of the PCI bus for local devices located on the EBUS.
Figure 3-1
Figure 3-1.
28500-DSH-002-C
Transfers data between the serial interface and shared memory over the PCI bus.
Stores configuration state information.
illustrates the Host interface block diagram.
Host Interface Functional Block Diagram
Interface
PCI
3.0 Host Interface
Interrupt
Control
Mindspeed Proprietary and Confidential
Clock
Mindspeed Technologies
Data
Configuration
Configuration
Registers
Interface
Interface
Device
Space
Host
PCI
PCI
®
Tx Control
Rx Control
Interrupts
Rx Data
Tx Data
Interface
Serial
Unit
500052_019
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