AM186ED-20KCSLASHW datasheet(5/88 Pages) AMD

5 / 88 page

Am186ED/EDLV Microcontrollers

PREL IMINARY

F T

INT2/INTA0/PWD/PIO31 ................................................................................................ 24

INT3/INTA1/IRQ ............................................................................................................. 24

INT4/PIO30 .................................................................................................................... 25

LCS/ONCE0/RAS0 ........................................................................................................ 25

MCS0/PIO14 .................................................................................................................. 25

MCS1/UCAS/PIO15 ....................................................................................................... 25

MCS2/LCAS/PIO24 ....................................................................................................... 25

MCS3/RAS1/PIO25 ....................................................................................................... 26

NMI ................................................................................................................................ 26

PCS1/PIO17, PCS0/PIO16 ............................................................................................ 26

PCS2/CTS1/ENRX1/PIO18 ........................................................................................... 27

PCS3/RTS1/RTR1/PIO19 .............................................................................................. 27

PCS5/A1/PIO3 ............................................................................................................... 27

PCS6/A2/PIO2 ............................................................................................................... 28

PIO31–PIO0 (Shared) .................................................................................................... 28

RD .................................................................................................................................. 28

RES ................................................................................................................................ 28

RTS0/RTR0/PIO20 ........................................................................................................ 30

RXD0/PIO23 .................................................................................................................. 30

RXD1/PIO28 .................................................................................................................. 30

S2/BTSEL ...................................................................................................................... 30

S1–S0 ............................................................................................................................ 30

S6/CLKDIV2/PIO29 ....................................................................................................... 30

SRDY/PIO6 .................................................................................................................... 30

TMRIN0/PIO11 ............................................................................................................... 31

TMRIN1/PIO0 ................................................................................................................ 31

TMROUT0/PIO10 .......................................................................................................... 31

TMROUT1/PIO1 ............................................................................................................ 31

TXD0/PIO22 ................................................................................................................... 31

TXD1/PIO27 ................................................................................................................... 31

UCS/ONCE1 .................................................................................................................. 31

UZI/PIO26 ...................................................................................................................... 31

VCC ................................................................................................................................ 31

WHB ............................................................................................................................... 31

WLB ............................................................................................................................... 32

WR ................................................................................................................................. 32

X1 ................................................................................................................................... 32

X2 ................................................................................................................................... 32

FUNCTIONAL DESCRIPTION .................................................................................................. 33

Memory Organization ..................................................................................................... 33

I/O Space ....................................................................................................................... 33

BUS OPERATION ..................................................................................................................... 34

BUS INTERFACE UNIT ............................................................................................................. 36

Nonmultiplexed Address Bus ......................................................................................... 36

DRAM Address Multiplexing .......................................................................................... 36

Programmable Bus Sizing ............................................................................................. 37

Byte-Write Enables ........................................................................................................ 37

Data Strobe Bus Interface Option .................................................................................. 37

DRAM INTERFACE ................................................................................................................... 37

PERIPHERAL CONTROL BLOCK ............................................................................................ 38

Reading and Writing the PCB ........................................................................................ 38

AM186ED-20KC/W 数据表(PDF) 5 Page - Advanced Micro Devices

AM186ED-20KC/W 数据表(HTML) 5 Page - Advanced Micro Devices

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