Datasheet

10
32133D–11/2011
UC3D
See Section 4. for a description of the various peripheral signals.
Refer to ”Electrical Characteristics” on page 716 for a description of the electrical properties of
the pad types used.
3.2.2 Peripheral Functions
Each GPIO line can be assigned to one of several peripheral functions. The following table
describes how the various peripheral functions are selected. The last listed function has priority
in case multiple functions are enabled.
3.2.3 JTAG Port Connections
If the JTAG is enabled, the JTAG will take control over a number of pins, irrespective of the I/O
Controller configuration.
2 2 PB12 44 VDDIO Normal I/O SPI - NPCS[0] IISC - IMCK GLOC - OUT[0] JTAG-TCK
6 8 PB13 45 VDDIO Normal I/O CAT - SYNC SCIF - GCLK[2] GLOC - IN[4] CAT - CSA[2]
38 50 PB14 46 VDDIO Normal I/O USBC - DP USART0 - RXD GLOC - OUT[2] CAT - CSA[13]
39 51 PB15 47 VDDIO Normal I/O USBC - DM USART0 - TXD GLOC - IN[12] CAT - CSB[13]
40 52 PB16 48 VDDIO
Input only, 5V
tolerant USBC - VBUS GLOC - IN[10] USB-VBUS
41 53 PB17 49 VDDIO Normal I/O IISC - ISDO USART0 - RTS GLOC - IN[13]
42 56 PB18 50 VDDIO Normal I/O IISC - ISDI CAT - SYNC GLOC - OUT[3] CAT - CSA[15]
Table 3-1. Multiplexed Signals on I/O Pins
48-pin
Package
64-pin
Package PIN GPIO Supply Pad Type
GPIO Function
Other FunctionsABCD
Table 3-2. Peripheral Functions
Function Description
A GPIO peripheral selection A
B GPIO peripheral selection B
C GPIO peripheral selection C
D GPIO peripheral selection D
Table 3-3. JTAG Pinout
48-pin or 64-pin
Package Pin Name JTAG Pin
2 PB12 TCK
5PA02TMS
4PA01TDO
3PA00TDI