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WSB-BT-R10 - ISA Support and Limitations

Brief Description

ISA Limitations with Intel Baytrail Chipsets as well as with Intel® Express Chipset which refers to any chipset that includes an Intel® I/O Controller Hub 6, 7, 8, or 9 (ICH6, ICH7, ICH8 and ICH9).

Due to the limitation of Intel Bay Trail processors, the WSB-BT does not
 support the following features:
 1.) Bus Master Cycles
 2.) DMA
 3.) LPC Memory Mapped Transactions
 4.) IRQ0, IRQ1, IRQ2, IRQ8, IRQ9, IRQ13, IRQ14
 5.) ISA Enable (IE) Bit
 6.) PnP


Solution

With Intel® Express Chipset which refers to any chipset that includes an Intel® I/O Controller Hub 6, 7, 8, or 9 (ICH6, ICH7, ICH8 and ICH9) and Intel SoC (Intel Baytrail) does not support Native ISA Signal. That is why Motherboards (SBC) with the above Intel Chipsets designed it with PCI-to-ISA or LPC-to-ISA Bridge IC(s) in order for the designed Motherboard can support ISA Cards. However, not all ISA Card/Cards will be support due to the listed features above that ISA Card requires.


BayTrail-ISA support

2023/05/02
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