CS8900A-CQR Cirrus Logic Inc, CS8900A-CQR Datasheet - Page 110

• Manufacturer Part Number: CS8900A-CQR
• Description: Ethernet ICs IC 10Mbps Ethernet Controller 5V
• Manufacturer: Cirrus Logic Inc

Specifications of CS8900A-CQR

• Ethernet Connection Type: 10Base- 2, 10Base- 5, 10Base- F, 10Base- T
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Product: Ethernet Controllers
• Standard Supported: IEEE 802.3
• Data Rate: 10 Mbps
• Maximum Operating Temperature: + 70 C
• Package / Case: LQFP-100
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

110
AEN switches high
Figure 32. Boundary Scan Continuity Cycle
CIRRUS LOGIC PRODUCT DATASHEET
and AEN becomes shift clock
output pins and bi-directional
ENTER BOUNDARY SCAN:
CS8900A resets, all digital
EXIT BOUNDARY SCAN:
All digital output pins and
bi-directional pins enters
Not in Boundary Scan
pins enter High-Z state,
AEN becomes ISA bus
OUTPUT CYCLE
Address Enable
INPUT CYCLE
Test Mode
High-Z state
AEN switches low
AEN switches high
TEST switches low (AEN must be low)
TEST switches high
AEN switches low
AEN switches high
AEN switches low
AEN switches high
34 cycles
50 cycles
Crystal LAN™ Ethernet Controller
Selected output
Selected input
EEDataOut
copied out
goes low
to the
pin
CS8900A
DS271F5