
E M 3 5 8 x
Table 6.1. EM358x Pin Descriptions (Continued)
46
Rev 1.0
Pin #
Signal
Direction
Description
33
PC2
I/O Digital
I/O
Enable with GPIO_DBGCFG[5] and GPIO_PCCFGH[1] clear
JTDO
O
JTAG data out to debugger
Selected when in JTAG mode (default mode, see JTMS description,
Pin 35)
SWO
O
Serial Wire Output asynchronous trace output to debugger
Select asynchronous trace interface in ARM core
Enable trace interface in ARM core
Select alternate output function with GPIO_PCCFGL[11:8]
Enable Serial Wire mode (see JTMS description, Pin 35)
Internal pull-up is enabled
TRACEDATA0
O
Synchronous CPU trace data bit 3
Select 4-wire synchronous trace interface in ARM core
Enable trace interface in ARM core
Select alternate output function with GPIO_PACFGL[11:8]
34
PC3
I/O Digital
I/O
Either Enable with GPIO_DBGCFG[5],
or enable Serial Wire mode (see JTMS description)
JTDI
I
JTAG data in from debugger
Selected when in JTAG mode (default mode, see JTMS description,
Pin 35)
Internal pull-up is enabled
TRACECLK
O
Synchronous CPU trace clock
Enable trace interface in ARM core
Select alternate output function with GPIO_PCCFGL[15:12]
35
PC4
I/O Digital
I/O
Enable with GPIO_DBGCFG[5]
JTMS
I
JTAG mode select from debugger
Selected when in JTAG mode (default mode)
JTAG mode is enabled after power-up or by forcing nRESET low
Select Serial Wire mode using the ARM-defined protocol through a debug-
ger
Internal pull-up is enabled
SWDIO
I/O
Serial Wire bidirectional data to/from debugger
Enable Serial Wire mode (see JTMS description)
Select Serial Wire mode using the ARM-defined protocol through a debug-
ger
Internal pull-up is enabled
Note:
1.
IRQC and IRQD external interrupts can be mapped to any digital I/O pin using the GPIO_IRQCSEL and
GPIO_IRQDSEL registers.
Содержание EM3585
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