PCN-1098@ilI[Odq(PCeNmW[)j

CoXpfW^I/O{[hDPD8255AC-52ڂCoCgPʁi8rbgj
̓o͂ł8rbgp|[g6|[gC[hPʁi16rbgj̓o
͂ł16rbg|[g3|[ggp\Dd+5V, 160mA(TYP)C
IvṼobt@iSN74LS245jȂ̏ꍇDgpx0`35DRlN^
34sIXŁC{[hCN1i"AL"ɑΉjCCN2i"AH"ɑΉj2DK
RlN^͎RFAS-34-03B܂͂̓iD{[h4AfBbvXCb`
18AWpXCb`1D

AhX\͈ȉ̒ʂF
(MBS)                              (LBS)
@A7 - A6 - A5 - A4 - A3 - A2 - A1 - A0
@A7FVXeR[hi˂1j
@A6`A3FfoCXio[ifBbvXCb`Őݒj
@A2`A0FI[_[R[h

I[_[R[hF
ȉCA2-A1-A0|[gCWX^PD8255AC-5̎w聡RlN^@̏
0-0-0A portALCN1
0-0-1A portAHCN2
0-1-0B portALCN1
0-1-1B portAHCN2
1-0-0C portALCN1
1-0-1C portAHCN2
1-1-0Rg[WX^ALCN1
1-1-1Rg[WX^AHCN2

o͓
1. 8rbgo
@ PD8255AC-5̃Rg[[hALCAHłꂼʂɐݒD
2. 16rbgo
   16rbgf[^AH̃PD8255AC-5ɏʁiD15`D8jCAL
@ PD8255AC-5ɉʁiD7`D0jɕďo͂D]ăPD8255AC-5
@ ̃Rg[[hALCAHœɐݒ肷D
   ȉC16rbg|[g(CN2)(CN1)@̏
@ A 16rbg|[gAHA portALA port
@ B 16rbg|[gAHB portALB port
@ C 16rbg|[gAHC portALC port
   16rbg̃|[g͂ȊȎgݍ킹͕sD

E4AfBbvXCb`SWFI/OAhX̐ݒ
@OFF-OFF-OFF-OFFF80H`87H
@OFF-OFF-OFF-ONF88H`8FH
@OFF-OFF-ON-OFFF90H`97H
@OFF-OFF-ON-ONF98H`9FH
@OFF-ON-OFF-OFFFA0H`A7H
@OFF-ON-OFF-ONFA8H`AFH
@OFF-ON-ON-OFFFB0H`B7H
@OFF-ON-ON-ONFB8H`BFH
@ON-OFF-OFF-OFFFC0H`C7H
@ON-OFF-OFF-ONFC8H`CFH
@ON-OFF-ON-OFFFD0H`D7H
@ON-OFF-ON-ONFD8H`DFH
ʏD0H`D7HCD8H`DFĤꂩɐݒ̂ƁD

E8AWpXCb`J1F荞݃x̐ݒ

                ________
                |      |
INT 4------+-----E@E-----+------INTR A (CN1,33pin)
INT 5----+-|-----E@E-----+             
INT 6--+-|-|-----E@E-----+
@@@ | | |@@|E@E|    |@@
@@@ | | |@@|E@E|    |
       | | ------E@E-----+------INTR B (CN2,33pin)
       | --------E@E-----+
@@@ ----------E@E-----+
@@@@@@@@|      |
@@@@@@    ~~~~~~~~

obt@GAiIvVj
PD8255AC-5̊e|[gƃRlN^̊Ԃɂ̓obt@GA݂ĂD
obt@KvƂꍇSN74LS245̂ƁDȂSN74LS245͑o
Ƃ邱Ƃ͂łC͂܂͏o͂̂ǂ炩ƂȂD
ȉCPD8255AC-5̎w聡|[gobt@GAvAbvW[
RJbgp^[(c)Z~bNRfTʒu@̏
ALARA1JV4,JG4RM1RA1C7
ALBRB1JV5,JG5RM2RB1C8
ALCRC1JV6,JG6RM3RC1C9
AHARA2JV1,JG1RM4RA2C10
AHBRB2JV2,JG2RM5RB2C11
AHCRC2JV3,JG3RM6RC2C12
SN74LS245̎@F
(1)obt@KvƂ|[g̃vAbvW[RODjbp
@ Ȃǂőؒf邩Ccz@gp̂ƁD
(2)obt@obt@GA̔cʂ̃p^[JbgD
   p^[Jbg͔cʂCUTƏꂽlp̓ɂ8{̃p^[D
(3)SN74LS245DIC̕mF㔼ct̂ƁD
(4)SN74LS245o͕肷Deobt@GAɑΉJV܂
@ JGWpD
@ JVWpFo͐p
@ JGWpF͐p
(5)obt@Ƃ0.01F0.1F̃Z~bNRfTD

[qԍ
 1  GND
 2  GND
 3  port A0
 4  port A1
 5  port A2
 6  port A3
 7  port A4
 8  port A5
 9  port A6
 10 port A7
 11 GND
 12 GND
 13 port B0
 14 port B1
 15 port B2
 16 port B3
 17 port B4
 18 port B5
 19 port B6
 20 port B7
 21 GND
 22 GND
 23 port C0
 24 port C1
 25 port C2
 26 port C3
 27 port C4
 28 port C5
 29 port C6
 30 port C7
 31 GND
 32 GND
 33 INTR A(CN1)/INTR B(CN2)
 34 NC