W83627EHG Nuvoton Technology Corporation of America, W83627EHG Datasheet - Page 174

• Manufacturer Part Number: W83627EHG
• Description: IC I/O CONTROLLER 128-QFP
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83627EHG

• Applications: PC's, PDA's
• Interface: LPC
• Voltage - Supply: 3.3V
• Package / Case: 128-XFQFN
• Mounting Type: Surface Mount
• Pin Count: 128
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

W83627EHF/EF, W83627EHG/EG
10.2.7.1. EPP Version 1.9 Operation
The EPP read/write operation can be completed under the following conditions:
a. If nWait is active low, the read cycle (nWrite inactive high, nDStrb/nAStrb active low) or write cycle
(nWrite active low, nDStrb/nAStrb active low) starts, proceeds normally, and is completed when nWait
goes inactive high.
b. If nWait is inactive high, the read/write cycle cannot start. It must wait until nWait changes to active
low, at which time it starts as described above.
10.2.7.2. EPP Version 1.7 Operation
The EPP read/write cycle can start without checking whether nWait is active or inactive. Once the
read/write cycle starts; however, it does not finish until nWait changes from active low to inactive high.
Publication Release Date: April 7, 2009
-163-
Version 1.94