W83627DHG Nuvoton Technology Corporation of America, W83627DHG Datasheet - Page 164

• Manufacturer Part Number: W83627DHG
• Description: IC I/O CONTROLLER 128-QFP
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83627DHG

• 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

12.3.2 Data and ecpAFifo Port
Modes 000 (SPP) and 001 (PS/2) (Data Port)
During a write operation, the Data Register latches the contents of the data bus on the rising edge of
the input, and the contents of this register are output to PD0-PD7. During a read operation, ports
PD0-PD7 are read and output to the host. The bit definitions are as follows:
Mode 011 (ECP FIFO-Address/RLE)
A data byte written to this address is placed in the FIFO and tagged as an ECP Address/RLE. The
hardware at the ECP port transmits this byte to the peripheral automatically. This operation is defined
only for the forward direction. The bit definitions are as follows:
12.3.3 Device Status Register (DSR)
These bits are logical 0 during a read of the Printer Status Register. The bits of this status register are
defined as follows:
7
6
7
7
5
6
6
4
5
5
4
3
4
2
3
3
-152-
1
2
1
2
0
1
1
1
0
0
1
Address/RLE
nFault
Select
PError
nAck
nBusy
Publication Release Date: Aug, 22, 2007
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
Address or
RLE
W83627DHG
Version 1.4