82374EB datasheet(43/208 Pages) INTEL

43 / 208 page

82374EB82374SB

Pin Name

Description

Serial Port B Address Decode

If either COM1 or COM2 address ranges are selected these

bits default to disabled upon PCIRST

Bits 32

Decode

3F8h – 3FFh (COM1)

2F8h – 2FFh (COM2)

Reserved

Port A disabled

Serial Port A Address Decode

If either COM1 or COM2 address ranges are selected these

bits default to disabled upon PCIRST

Bits 10

Decode

3F8h – 3FFh (COM1)

2F8h – 2FFh (COM2)

Reserved

Port A disabled

319 EISAID 41

EISA ID REGISTERS

Address Offset

50h 51h 52h 53h

Default Value

00h 00h 00h 00h

Attribute

ReadWrite

Size

8 Bits each

These 8 bit registers contain the EISA motherboard ID The data in the register is reflected on the data bus for

IO cycles addressed to 0C80h – 0C83h respectively

Bit

Description

EISA ID Byte

These bits contain the EISA Motherboard ID information On power up these bits

default to 00h These bit are written with the ID value during configuration The value of these bits are

reflected in IO registers 0C80h – 0C83h

3110 SGRBASCATTERGATHER RELOCATE BASE ADDRESS REGISTER

Address Offset

57h

Default Value

04h

Attribute

ReadWrite

Size

8 Bits

The value programmed in this register determines the high order IO address of the S-G registers The default

value is 04h

Bit

Description

S-G Relocate Byte

These bits determine the IO location of the Scatter Gather Registers The

Scatter-Gather register relocation range is xx10h – xx3Fh (default 0410h – 043Fh) These bits

determine the Byte 1 of the IO address Address signals LA 158 are compared against the contents

of this register (bit 70 ) to determine IO accesses to the Scatter-Gather registers The default on

Power up is 04h

82374EB Datasheet(PDF) 43 Page - Intel Corporation

82374EB Datasheet(HTML) 43 Page - Intel Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL