CS8900A-CQ3Z Cirrus Logic Inc, CS8900A-CQ3Z Datasheet - Page 103

• Manufacturer Part Number: CS8900A-CQ3Z
• Description: IC LAN ETHERNET CTLR 3V 100LQFP
• Manufacturer: Cirrus Logic Inc
• Type: Single Chipr

Specifications of CS8900A-CQ3Z

• Package / Case: 100-LQFP
• Controller Type: Ethernet Controller (IEEE 802.3)
• Interface: ISA-BUS
• Voltage - Supply: 3V, 5V
• Current - Supply: 95mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Ethernet Connection Type: 10BASE- 2 or 10BASE- 5 or 10BASE- F or 10BASE- T
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Product: Ethernet Controllers
• Standard Supported: IEEE 802.3
• Data Rate: 10 Mbps
• Supply Voltage (max): 6 V
• Supply Voltage (min): - 0.3 V
• Supply Current (max): +/- 10 mA
• Maximum Operating Temperature: + 70 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 598-1163 - KIT EVAL FOR CS8900A
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 598-1127

DS271F5
5.6.8 Completing Transmission
When the CS8900A successfully completes
transmitting a frame, it sets the TxOK bit (Reg-
CS8900A
Crystal LAN™ Ethernet Controller
Exit: can't Issue command
Note: Issuing a command
at this point will cause
previous transmit frame
to be lost.
Figure 30. Transmit Operation in Polling Mode
CIRRUS LOGIC PRODUCT DATASHEET
Host Writes Transmit Command
Length to the TxLength Register
Enter Packet Transmit Process
Host Writes Transmit Frame
Yes
to the TxCMD Register
Host Reads the BusST
Exit Transmit Process
Register (Register 18)
CS8900A Commits
Transmits Frame
Transmit Frame
Transmit Frame
Buffer Space to
to CS8900A
Host Writes
Yes
CS8900A
pending?
No
TxNOW
TxCMD
bit = 1?
Rdy4
Is
No
ister 8, TxEvent, Bit 8). If the TxOKiE bit (Reg-
ister 7, TxCFG, bit 8) is set, the CS8900A
generates a corresponding interrupt.
Polling Loop
Transmit Request
103