Intel Embedded Intel486 Hardware Reference Manual page 234

EMBEDDED Intel486™ PROCESSOR HARDWARE REFERENCE MANUAL
SDCPYEN
(3:1, 13)#
SDCPYUP
SDHDLE(3:0)#
SDOE(2:0)#
HDSDLE1#
HDOE(1:0)#
HALAOE#
LAHAOE#
LASAOE#
SALAOE#
LALE#
HALE#
SALE#
HBE(3:0)#
HADS(1:0)#
HNA#
HD/C#
HW/R#
HM/IO#
HLOCK#
HRDYI#
HRDYO#
HERDYO#
HHOLD
HHLDA
HLOCMEM#
HLOCIO#
HGTI6M#
HSTRETCH#
HSSTRB#
RDE#
RST
RSTCPU
RST385
RSTAR#
SPWROK
CPU(3:0)
AENLE#
Figure 8-2. Block Diagram of EISA Bus Controller (EBC)
8-6
Data
Buffer
Control
Address
Buffer
Control
Host Bus
Interface
Unit
Cache
Support
Reset
Control
CPU Select
Slot Support
HCLKCPU
Clock
BCLK
Generator
CLKKB
Unit
BCLKIN
BALE
SA(1:0)
SBHE#
IORC#
IOWC#
MRDC#
ISA Bus
MWTC#
Interface
SMRDC#
Unit
SMWTC#
IO16#
M16#
NOWS#
CHRDY#
REFRESH#
MASTER16#
BE(3:0)#
M-IO
W-R
LOCK#
EISA Bus
START#
Interface
CMD#
Unit
EXRDY
MSBURST#
SLBURST#
EX32#
EX16#
ST(3:0)
DHOLD
DRDY
ISP
Interface
EXMASTER#
Unit
EMSTR16#
GTIM#
LIOWAIT#
I/O Recovery
TEST1#
Testing