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Format of PCI Configuration Data for Intel 82437FX

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Offset Size Description

00h

64 BYTEs

header (see #00878) (vendor ID 8086h, device ID 122Dh) (see #00873)

40h

16 BYTEs

reserved

50h

BYTE

PCI Control (see #01111)

51h

BYTE

reserved

52h

BYTE

cache control (see #01112)

53h

4 BYTEs

reserved

57h

BYTE

DRAM Control (see #01116)

58h

BYTE

DRAM timing (see #01117)

59h

7 BYTEs

Programmable Attribute Map registers 0-6 (see #01118)

60h

5 BYTEs

DRAM Row Boundary Registers 0-4
each register N indicates cumulative amount of memory in rows 0-N, in 4M units (each row is 64 bits wide)

65h

3 BYTEs

reserved

68h

BYTE

DRAM Row Type (see #01121)

69h

9 BYTEs

reserved

72h

BYTE

System Management RAM control (see #01123)

73h

141 BYTEs

reserved

See Also:

#01106,#01108