W83627EHG Nuvoton Technology Corporation of America, W83627EHG Datasheet - Page 169

• 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

Notes:
1. These registers are available in all modes.
2. These registers are available only in EPP mode.
Each register (or pair of registers, in some cases) is discussed below.
10.2.1 Data Port (Data Swapper)
The CPU reads the contents of the printer's data latch by reading the data port.
Data Port (R/W)
Status Buffer (Read)
Control Swapper (Read)
Control Latch (Write)
EPP Address Port R/W)
EPP Data Port 0 (R/W)
EPP Data Port 1 (R/W)
EPP Data Port 2 (R/W)
EPP Data Port 3 (R/W)
0
0
1
1
1
1
REGISTER
1
1
0
0
1
1
BUSY#
PD7
PD7
PD7
PD7
PD7
PD7
7
1
1
0
1
0
1
0
1
ACK#
PD6
PD6
PD6
PD6
PD6
PD6
6
1
1
Printer control swapper (Read)
EPP address port (R/W)
EPP data port 0 (R/W)
EPP data port 1 (R/W)
EPP data port 2 (R/W)
EPP data port 2 (R/W)
PD5
PD5
PD5
PD5
PD5
PD5
DIR
PE
5
1
W83627EHF/EF, W83627EHG/EG
IRQEN
- 158 -
SLCT
PD4
PD4
PD4
PD4
PD4
PD4
IRQ
4
ERROR#
SLIN
SLIN
PD3
PD3
PD3
PD3
PD3
PD3
3
INIT#
INIT#
PD2
PD2
PD2
PD2
PD2
PD2
2
1
AUTOFD#
AUTOFD#
PD1
PD1
PD1
PD1
PD1
PD1
1
1
STROBE#
STROBE#
TMOUT
PD0
PD0
PD0
PD0
PD0
PD0
1
2
2
2
2
2
0