STPCC03 STMicroelectronics, STPCC03 Datasheet - Page 19

• Manufacturer Part Number: STPCC03
• Description: STPC CONSUMER-S DATASHEET- PC COMPATIBLE EMBEDDED MICROPROCESSOR
• Manufacturer: STMicroelectronics

Table 2-3. ISA / IDE dynamic multiplexing
.
Figure 2-2. Typical ISA/IDE Demultiplexing
RMRTCCS#
KBCS#
RTCRW#
RTCDS#
SA[19:8]
LA[23]
LA[22]
SA[21]
SA[20]
LA[19:17]
IOCHRDY
(ISAOE# = 0)
ISA BUS
STPC bus / DD[15:0]
DD[15]
DD[14]
DD[13]
DD[12]
DD[11:0]
SCS3#
SCS1#
PCS3#
PCS1#
DA[2:0]
DIORDY
(ISAOE# = 1)
MASTER#
ISAOE#
LA[22]
LA[23]
LA[22]
LA[23]
IDE
Issue 1.1 - October 16, 2000
A
DIR
OE
74LS245
Table 2-4. ISA / Local Bus pin sharing
.
B
SD[15:0]
DREQ_MUX[1:0]
SMEMR#
MEMW#
BHE#
AEN
ALE
MEMR#
IOR#
IOW#
REF#
IOCHCK#
GPIOCS#
ZWS#
SA[7:4]
TC, DACK_ENC[2:0]
SA[3]
ISAOE#,SA[2:0]
DEV_CLK, RTCAS#
IOCS16#, MASTER#
SMEMW#, MCS16#
ISACLK, ISA_CLK2X
ISA / IPC
RMRTCCS#
KBCS#
RTCRW#
RTCDS
SA[19:8]
PCS1#
PCS3#
SCS1#
SCS3#
PD[15:0]
PA[21:20]
PA[19]
PA[18]
PA[17]
PA[16]
PA[15]
PA[14]
PA[13]
PA[12]
PA[11]
PA[10]
PA[9]
PA[8]
PA[7:4]
PA[3:0]
PRDY
IOCS#[3:0]
FCS#[1:0]
PRD#[1:0]
PWR#[1:0]
PIN DESCRIPTION
LOCAL BUS
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