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CMP82C55AZ Fiches technique(PDF) 21 Page - Renesas Technology Corp

No de pièce CMP82C55AZ
Description  CMOS Programmable Peripheral Interface
PDF  26 Pages
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Fabricant  RENESAS [Renesas Technology Corp]
Site Internet  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

CMP82C55AZ Fiches technique(HTML) 21 Page - Renesas Technology Corp

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MS82C55A, MQ82C55A, MP82C55A
FN6140 Rev 2.00
Page 21 of 26
June 15, 2006
FIGURE 28. MODE 1 (STROBED OUTPUT)
FIGURE 29. MODE 2 (BIDIRECTIONAL)
NOTE: Any sequence where WR occurs before ACK and STB occurs before RD is permissible. (INTR = IBF
 MASK  STB  RD  OBF  MASK
 ACK  WR)
Timing Waveforms (Continued)
tWOB (21)
tWB (12)
tAK (15)
tAIT (27)
tAOB (22)
tWIT
OBF
WR
INTR
ACK
OUTPUT
(28)
tWOB
tAOB
tAK
tAD (19)
tKD
tPH (18)
tPS (17)
tSIB
tST
OBF
WR
INTR
ACK
IBF
STB
PERIPHERAL
BUS
RD
tRIB (24)
DATA FROM
PERIPHERAL TO 82C55A
DATA FROM
82C55A TO PERIPHERAL
DATA FROM
82C55A TO CPU
DATA FROM
CPU TO 82C55A
(21)
(22)
(15)
(16)
(20)
(23)
(NOTE)
(NOTE)



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