W83877ATG Nuvoton Technology Corporation of America, W83877ATG Datasheet - Page 103

• Manufacturer Part Number: W83877ATG
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83877ATG

• Lead Free Status / RoHS Status: Supplier Unconfirmed

W83877ATF/W83877ATG
8. PLUG AND PLAY CONFIGURATION
A powerful new plug-and-play function has been built into W83877ATF/ATG to help simplify the task
of setting up a computer environment. With appropriate support from BIOS manufacturers, the system
designer can freely allocate Winbond I/O devices (i.e., the FDC, PRT and UART ) in the PC's I/O
space (100H - 3FFH). In addition, W83877ATF/ATG also provides 8 interrupt requests and 3 DMA
pairs for designers to assign in interfacing FDCs, UARTs, and PRTs. Hence this powerful I/O chip
offers greater flexibility for system designers.
The PnP feature is implemented through a set of Extended Function Registers (CR20 to 29). Details
on configuring these registers are given in Section 8. The default values of these PnP-related registers
set the system to a configuration compatible with environments designed with previous Winbond I/O
chips.
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