Faraday Electronics FE3000A CPU Control Logic

The FE3000A is an 84-pin chip that provides the control and timing signals for a IBM PC/AT-compatible mainboard. It is intended to be used together with the FE3010 AT peripheral controller, the FE3020 AT addresss buffer, and the FE3030 AT data buffer. Together these four chips form the FE3400B chipset.

The FE3000A is used in the GRiDcase 1520 mainboard (revision 2).

The original datasheet is available for download.

Pin Assignments

CTLOFF CPUHRQ BALE AS AIOW /YMEMW /YMEMR /YIOW /YIOR /XBHE VSS VDD ALE /DTR X2284 X1284 X2824 X18284 /READY /RESET GTE245
11 10 9 8 7 6 5 4 3 2 1 84 83 82 81 80 79 78 77 76 75
DMARDY 12 FE3000A 74 F14M
DMACLK 13 73 F119M
A0 14 72 HLDA1
A1 15 71 /ENDCY
EAIOCK 16 70 XD7
EBRMCK 17 69 XA3
ENPAL2 18 68 S1
F16 19 67 S0
HLDA 20 66 RC
HRQ1 21 65 OUT1
IOCRDY 22 64 /ZROWS
MDPIN0 23 63 /ENFAST
MDPIN1 24 62 /RESIN
MNIO 25 61 /RAMSL
/AEN1 26 60 /NMICS
/AEN2 27 59 /IOS16
/BUSY 28 58 /IOCHK
/CS287 29 57 /ERROR
/IRQ13 30 56 N/C
/DMAMR 31 55 IOCHK
RST287 32 54 LSA0
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53
SYSCLK RESCPU REFDET Q1 PCK PCLK PROCLK /PCLK /RFSH VSS VDD XA0 /DEN0 /DEN1 DIR245 /ERFSH /NPCS /EDMMR /INTA /NMI /BZ286