RT1730
Application Information
Abbreviations :
The Controller Interface uses the I
2
C Protocol :
The TCPM is the only master on this I
2
C bus
The TCPC is a slave device on this I
2
C bus
Each Type-C port has its own unique I
2
C slave address.
The TCPC shall have equal numbers of unique I
2
C slave
addresses and supported Type-C ports
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Term
TCPC
TCPCI
TCPM
Description
Type-C Port Controller
Type-C Port Controller Interface
Type-C Port Manager
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Type-C Port Controller (TCPC) Interface :
The TCPC supports Fast-mode bus speed
The TCPC has an open drain output, active low INT_N
Pin. This pin is used to indicate change of state, where
INT_N pin is asserted when any Alert Bits are set
Type-C Port Manager
Policy Engine
Protocol Layer
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The TCPCI supports an I/O nominal voltage range of
1.8V and 3.3V
The TCPC can auto-increment the I
2
C internal register
address of the last byte transferred during a read
independent of an ACK/NACK from the master
The default I
2
C address shows below.
INT_N In
I C Master
2
TCPC Interface
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INT_N Out
I C Slave
2
1
MSB
0
0
1
1
1
0
R/W
LSB
Tx/Rx Buffer
GoodCRC/Retry
Physical Layer
Type-C CC Logic
Type-C Port Controller
Copyright
©
2018 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
6
DS1730-01 January 2018
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
