CP3BT23_14 Datasheet, PDF (95/324 Pages) Texas Instruments – CP3BT23 Reprogrammable Connectivity Processor with Bluetooth and Dual CAN Interfaces

CP3BT23
www.ti.com
SNOSCX3A – JULY 2013 – REVISED JANUARY 2014
14.1.7 Port Alternate Function Select Register (PxALTS)
The PxALTS register selects which of two alternate functions are selected for the port pin. These bits are
ignored unless the corresponding PxALT bits are set. Each port pin can be controlled independently.
7
0
PxALTS
PxALTS
The PxALTS bits select among two alternate functions. Table 14-2 shows the mapping of
the PxALTS bits to the alternate functions. Unused PxALTS bits must be clear.
Port Pin
PE0
PE1
PE2
PE3
PE4
PE5
PE6
PE7
PF0
PF1
PF2
PF3
PF4
PF5
PF6
PF7
PG0
PG1
PG2
PG3
PG4
PG5
PG6
PG7
PH0
PH1
PH2
PH3
PH4
PH5
PH5
PH7
PJ0
PJ1
PJ2
PJ3
PJ4
PJ5
Table 14-2. Alternate Function Select
PxALTS = 0
UART0 RXD0
UART0 TXD0
UART0 RTS
UART0 CTS
UART0 CKX
SRFS
CAN1RX
CAN1TX
MSK
MDIDO
MDODI
MWCS
SCK
SFS
STD
SRD
RFSYNC
RFCE
BTSEQ1
SCLK
SDAT
SLE
WUI10
TA
UART1 RXD1
UART1 TXD1
UART2 RXD2
UART2 TXD2
UART3 RXD3
UART3 TXD3
UART3 TXD3
CAN0TX
WUI18
WUI19
WU120
WU121
WU122
WU123
Reserved
Reserved
Reserved
Reserved
TB
NMI
Reserved
Reserved
TIO1
TIO2
TIO3
TIO4
TIO5
TIO6
TIO7
TIO8
Reserved
Reserved
SRCLK
Reserved
Reserved
Reserved
BTSEQ2
BTSEQ3
WUI11
WUI12
WUI13
WUI14
WUI15
WUI16
WUI16
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
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PxALTS = 1
Input/Output Ports
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