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PCF8564A データシート(PDF) 24 Page - NXP Semiconductors

部品番号 PCF8564A
部品情報  Real time clock and calendar
PDF  44 Pages
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メーカー  NXP [NXP Semiconductors]
ホームページ  http://www.nxp.com
Logo NXP - NXP Semiconductors

PCF8564A データシート(HTML) 24 Page - NXP Semiconductors

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PCF8564A_1
© NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 1 — 8 October 2009
24 of 44
NXP Semiconductors
PCF8564A
Real time clock and calendar
Fig 18. Master reads word after setting word address (write word address; READ data)
S
0A
SLAVE ADDRESS
WORD ADDRESS
A
A
SLAVE ADDRESS
acknowledgement
from slave
R/W
A
013aaa034
P
1
R/W
S1
acknowledgement
from slave
acknowledgement
from slave
acknowledgement
from master
no acknowledgement
from master
auto increment
memory word address
auto increment
memory word address
at this moment master transmitter
becomes master receiver and
PCF8564A slave receiver
becomes slave transmitter
last byte
DATA
DATA
n bytes
Fig 19. Master reads slave immediately after first byte (READ mode)
S
1A
SLAVE ADDRESS
DATA
A1
DATA
acknowledgement
from slave
acknowledgement
from master
no acknowledgement
from master
R/W
auto increment
word address
mgl665
auto increment
word address
n bytes
last byte
P



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