Intel 80386 - Page 270

DRAM PAL DESCRIPTIONS
PALl6R6 PAL DESIGN SPECIFICATIONS
PART NUMBER: 2-CLK DRAM STATE PAL
DRAM STATE PAL OF INTERLEAVED DRAM CONTROLLER FOR 80386 SYSTEMS
INTEL, SANTA CLARA, CALIFORNIA
CLK2 CLK A2 CSO CSI CS2 CS3 DT%R RFRQ GND
OE RASO ROWSEL MUXOE QO QI A2REG DRAMS ELECT RASI VCC
/DRAMSELECT:= CSO * /DRAMSELECT
+ CS1 * /DRAMSELECT
+ CS2 * /DRAMSELECT
+ /CS3 * /DRAMSELECT
+ /CLK * /DRAMSELECT
+ /MUXOE * ROWSEL * /Q1 * /QO * /CLK
/ROWSEL : = /ROWSEL * QO * CLK
+ /ROWSEl * /QI
+ ROWSEL * /Q1 * /QO * /CLK
+ ROWSEL * /QI * QO * /CLK * MUXOE * RFRQ
/Q1:= ROWSEL * /QI * /QO * /CLK
+ ROWSEL * QO * CLK
+ Q1 * /QO * CLK
+ /ROWSEL * /Q1 * /QO * CLK * DT%R * /MUXOE
+ ROWSEL * /QI * QO * /CLK * /MUXOE
+ ROWSEL * /QI * QO * /CLK * /RFRQ
/QO : = /ROWSEL * QI * QO * /CLK
+ /ROWSEL * /QO * QI * CLK
+ ROWSEL * /QI * /QO * /CLK
+ ROWSEL * QI * CLK * /CSO * /CS1 * /CS2 * CS3
* /MUXOE * A2 * A2REG
+ ROWSEL * Q1 * CLK * /CSO * /CS1 * /CS2 * CS3
* /MUXOE * /A2 * /A2REG
+ ROWSEL * /Q1 * QO * CLK * /CSO * /CS1 * /CS2 * CS3 * /MUXOE
+ ROWSEL * /Q1 * QO * CLK * DRAMSElECT * /MUXOE
+ ROWSEL * /Q1 * QO * /CLK * MUXOE * RFRQ
/RASO = ROWSEL * /QI * /QO * /CLK * /A2REG
+ ROWSEL * /Q1 * /QO * /CLK * MUXOE
+ /ROWSEL * /A2REG
+ /ROWSEL * MUXOE
+ ROWSEL * QI * CLK * /A2 * /A2REG * /CSO * /CSI * /CS2 * CS3 * /MUXOE
+ ROWSEL * /QI * QO * CLK * /A2 * /CSO * /CSI * /CS2 * CS3 * /MUXOE
+ ROWSEL * /Q1 * QO * CLK * /A2 * DRAMSElECT * /MUXOE
/RAS1 = ROWSEL * /QI * /QO * /CLK * A2REG
+ ROWSEL * /QI * /QO * /CLK * MUXOE
+ /ROWSEL * A2REG
+ /ROWSEl * MUXOE
+ ROWSEL * QI * CLK * A2 * A2REG * /CSO * /CS1 * /CS2 * CS3 * /MUXOE
+ ROWSEL * /Q1 * QO * CLK * A2 * /CSO * /CS1 * /CS2 * CS3 * /MUXOE
+ ROWSEL * /QI * QO * CLK * A2 * DRAMSELECT * /MUXOE
/MUXOE : = /MUXOE * /QO
+ /MUXOE * CLK
+ /MUXOE * /ROWSEL * /QI
+ /RFRQ * ROWSEL * /QI * QO * /CLK
+ /MUXOE * /RFRQ * Q1 * QO * /CLK
/A2REG:= /A2REG * /QO
+ /A2REG * Q1 * CLK
+ /A2REG * ROWSEL * QI .
+ /A2REG * /ROWSEL * /QI
+ A2REG * /ROWSEL * Q1 * QO * /CLK
+ /A2 * ROWSEL * /QI * QO
Figure C-3. 2-CLK DRAM State PAL Equations
C-8