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Bitfields for Intel 82443BX Memory Buffer Frequency Select

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Bit Description

23

reserved

22

MAA[13:0], WEA#, SRASA#, SCASA# buffer select
0 = 66 MHz buffers
1 = 100 MHz buffers

21

MAB[12:11,9:0]#, MAB[13,10], WEB#, SRASB#, SCASB# buffer select
0 = 66 MHz buffers
1 = 100 MHz buffers

20

MD[63:0] (control 2) buffer select

19

MD[63:0] (control 1) buffer select

18

MECC[7:0] (control 2) buffer select

17

MECC[7:0] (control 1) buffer select

16

CSB7#/CKE5 buffer select

15

CSA7#/CKE3 buffer select

14

CSB6#/CKE4 buffer select

13

CSA6#/CKE2 buffer select

12

CSA5#/RASA5#, CSB5#/RASB5# buffer select

11

CSA4#/RASA4#, CSB4#/RASB4# buffer select

10

CSA3#/RASA3#, CSB3#/RASB3# buffer select

9

CSA2#/RASA2#, CSB2#/RASB2# buffer select

8

CAS1#/RASA1#, CSB1#/RASB1# buffer select

7

CSA0#/RASA0#, CSB0#/RASB0# buffer select

6

DQMA5/CASA5# buffer select

5

DQMA1/CASA1# buffer select

4

DQMB5/CASB5# buffer select

3

DQMB1/CASB1# buffer select

2

DQMA[7:6,4:2,0]/CASA[7:6,4:2,0]# buffer select

1

CKE1/GCKE buffer select

0

CKE0/FENA buffer select

See Also:

#01142,#01166