AM79C90 Advanced Micro Devices, AM79C90 Datasheet - Page 11

• Manufacturer Part Number: AM79C90
• Description: CMOS Local Area Network Controller for Ethernet (C-LANCE)
• Manufacturer: Advanced Micro Devices

Figure 2-1. C-LANCE/Processor Memory Interface
Transmit Descriptor for 2nd Data Buffer
Transmit Descriptor for 3rd Data Buffer
Transmit Descriptor for Nth Data Buffer
Receive Descriptor for 2nd Data Buffer
Receive Descriptor for 3rd Data Buffer
Receive Descriptor for Nth Data Buffer
Transmit Descriptor for 1st Data Buffer
Receive Descriptor for 1st Data Buffer
Transmit Data Buffer #1
Transmit Data Buffer #2
Transmit Data Buffer #3
Transmit Data Buffer #N
Receive Data Buffer #1
Receive Data Buffer #2
Receive Data Buffer #3
Receive Data Buffer #N
P R E L I M I N A R Y
Am79C90
Initialization
Block
Transmit
Data
Buffers
Receive
Data
Buffers
Transmit
Descriptor
Ring
(4 words
per entry)
Receive
Descriptor
Ring
(4 words
per entry)
17881B-7
AMD
11