AM79C970A Advanced Micro Devices, AM79C970A Datasheet - Page 194

• Manufacturer Part Number: AM79C970A
• Description: PCnet-PCI II Single-Chip Full-Duplex Ethernet Controller for PCI Local Bus Product
• Manufacturer: Advanced Micro Devices

(SRDCLK)
(STDCLK)
(RXCRS)
Transmit
(TXDAT)
SWITCHING WAVEFORMS: GPSI
Transmit
Collision
Notes:
1. If RXCRS is not present during transmission, LCAR bit in TMD2 will be set.
2. If CLSN is not present during or shortly after transmission, CERR in CSR0 will be set.
(RXCRS)
194
(RXDAT)
(Note 1)
(Note 2)
Transmit
Present
Collision
Collision
(CLSN)
(TXEN)
Receive
Receive
(CLSN),
(CLSN),
Present
Inactive
Carrier
Enable
Carrier
Active
Clock
Data
Clock
Data
AMD
tGPR4
tGPR4
tGPT3
(First Bit Preamble)
tGPR11
tGPT1
(First Bit Preamble)
tGPT2
tGPT3
tGPR5
tGPR1
tGPT9
tGPR7
tGPR2
P R E L I M I N A R Y
Transmit Timing
Receive Timing
Am79C970A
tGPR3
(No Collision)
(Address Type Designation Bit) (Last Bit)
tGPT4
tGPT7
tGPT6
(Last Bit)
tGPR8
tGPT3
tGPR9
tGPR5
tGPR10
tGPT5
tGPR6
tGPR12
tGPT8
19436A-73
19436A-74