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PCA9641PW Datasheet(PDF) 24 Page - NXP Semiconductors

Part # PCA9641PW
Description  2-channel I2C-bus master arbiter
PDF  55 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

PCA9641PW Datasheet(HTML) 24 Page - NXP Semiconductors

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PCA9641
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet
Rev. 2.1 — 27 October 2015
24 of 55
NXP Semiconductors
PCA9641
2-channel I2C-bus master arbiter
10. State machines
Fig 10. State machine of downstream bus ownership
Master 0
aaa-008553
M0_GRANT
!M0-lock_req &
M1-lock_req
!M0-lock_req &
M1-lock-req
M0-lock_grant
SWITCH
!M1-lock_req &
M0-lock_req
M1-lock_grant
!M0-lock_req
CIDLE
(M0-lock_req &
!M1-lock_req) ||
(M0-lock_req &
M1-lock_req & priority)
!M1-lock_req
(!M0-lock_req &
M1-lock_req) ||
(M0-lock_req &
M1-lock_req & priority)
M1_GRANT
!M1-lock_req &
M0-lock_req
bus_connect &
bus_init
bus_connect &
!bus_init
smbus_done = 1
bus_init_fail
lock_req &
!bus_connect
M1_INIT
init_done &
!init_fail
M1_CONNECT
!M1-lock_req &
!M0-lock_req
SMBUS_
RESET
POR
smbus_swrst
!smbus_swrst
reset
!M0-bus_req &
!M1-bus_req
bus_req &
!bus_connect
!bus_init_fail
Bus_connect &
!bus_init
bus_connect &
bus_init
Bus_init_fail
Master 0
M0_CONNECT
M0_INIT



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