
DPC31 HW
SchnittStellenCenter
DPC31 HW Description
Version V1.0 Page 39
Copyright (C) Siemens AG 2000. All rights reserved. 12/00
CS
80286
+
Bus Contr.
(82288) +
82244
DB
DB 15..0
EPRO RAM
AB
dress
Decoder
RD
WR
AB 23..0
RD
WR
INTR
READY
DB 7..0
AB 13..1
CSRAM
CSEPROM
Driver, Control Logic
Clk
Reset
DPC31
RESET
Quartz
Scaler :2/4
12 MHz
12/24 MHz
BusType
(2 ..0)
0 0 0
PE
(7..0)
PG(4..0), PF(7..0)
PG(7)
PH(0)
PG(5)
R TS_TX E
TXD _TX S
RXD_RXS
SER-
Bus
Interface
XC TS _R X
PH(2)
PG(6)
!
CSb
Figure 7.1-3:
80286 System as an Example for Mode X86
M68HC11
DB
EPRO RAM
AB
AS
R/W
AB 15..0
R/W
E_Cloc
IRQ
DB 7..0
AB 12..0
Driver, Contro l Logic
Clk
XR eset
DPC31
RESET
Quartz
Scaler :2/4
12 MHz
12 MHz
Bus Type
(2..0)
0 1 1
PE
(7..0)
PG(4..0), PF(7..0)
PG(7)
PH(0)
PG(5)
RTS_TXE
TXD _TXS
RXD_RXS
SER-
Bus
Interface
XCTS_RX
PH(1)
3 MHz
+5V
CS
PG(6)
CS
Figure 7.1-4:
M68HC11 System as an Example for Synchronous Motorola Mode
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