W83627DHG Nuvoton Technology Corporation of America, W83627DHG Datasheet - Page 36

• 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

6.
The W83627DHG uses Super I/O protocol to access configuration registers to set up different types of
configurations. The W83627DHG has totally twelve Logical Devices (from Logical Device 0 to Logical
Device C with the exception of Logical Device 4 for backward compatibility) corresponding to twelve
individual functions: FDC (Logical Device 0), Parallel Port (Logical Device 1), UARTA (Logical Device
2), UARTB (Logical Device 3), Keyboard Controller (Logical Device 5), SPI (Serial Peripheral Interface,
Logical Device 6), GPIO6 (Logical Device 7), WDTO# & PLED (Logical Device 8), GPIO2, 3, 4, 5
(Logical Device 9), ACPI (Logical Device A), Hardware Monitor (Logical Device B), and PECI & SST
(Logical Device C). Each Logical Device has its own configuration registers (above CR30). The host
can access those registers by writing an appropriate Logical Device Number into the Logical Device
select register at CR7. Please note that GPIO1 is not defined in the W83627DHG.
Devices of I/O Base Address
CONFIGURATION REGISTER ACCESS PROTOCOL
LOGICAL DEVICE
NUMBER
C
A
B
0
1
2
3
4
5
6
7
8
9
#0
#0
Logical Device No.
Logical Device No.
Logical Device
Logical Device
Logical Device
Logical Device
#1
#1
Configuration
Configuration
#2
#2
Control
Control
Serial Peripheral Interface
#C
#C
Keyboard Controller
Hardware Monitor
WDTO# & PLED
GPIO 2, 3, 4, 5
PECI & SST
Parallel Port
FUNCTION
UART A
UART B
GPIO 6
ACPI
FDC
-24-
Logical Device
Logical Device
Reserved
One Per
One Per
Publication Release Date: Aug, 22, 2007
I/O BASE ADDRESS
W83627DHG
100h ~ FFFh
100h ~ FFFh
100h ~ FFEh
100h ~ FF8h
100h ~ FF8h
100h ~ FF8h
100h ~ FF8h
100h ~ FF8h
Reserved
Reserved
Reserved
Reserved
Version 1.4