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EM342-RTR Datasheet(PDF) 54 Page - Silicon Laboratories

Part # EM342-RTR
Description  High-Performance, Integrated RF4CE System-on-Chip
PDF  143 Pages
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Manufacturer  SILABS [Silicon Laboratories]
Direct Link  http://www.silabs.com
Logo SILABS - Silicon Laboratories

EM342-RTR Datasheet(HTML) 54 Page - Silicon Laboratories

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EM342
54
Rev 1.0
operation, but has other miscellaneous control bits as well. GPIO_DBGSTAT, a read-only register, returns status
related to debugger activity (GPIO_FORCEDBG and GPIO_SWEN), as well a flag (GPIO_BOOTMODE) indicating
whether nBOOTMODE was asserted at the last power-on or nRESET-based reset.
7.10. GPIO Signal Assignment Summary
The GPIO signal assignments are shown in Table 7.4.
Table 7.4. GPIO Signal Assignments
GPIO
Analog
Alternate Output
Input
Output Current
Drive
PA4
PTI_EN, TRACEDATA2
Standard
PA5
PTI_DATA, TRACEDATA3
nBOOTMODE1
Standard
PA7
REG_EN2
High
PB0
TRACECLK
IRQA
Standard
PB1
SC1TXD, SC1MOSI, SC1MISO,
SC1SDA
SC1SDA
Standard
PB2
SC1SCLK
SC1MISO, SC1MOSI, SC1SCL,
SC1RXD
Standard
PB3
SC1SCLK
SC1SCLK, SC1nCTS
Standard
PB4
SC1nRTS
SC1nSSEL
Standard
PC0
TRACEDATA1
JRST3
High
PC1
TRACEDATA0, SWO
Standard
PC2
JTDO4, SWO
Standard
PC3
JTDI3
Standard
PC4
SWDIO5
SWDIO5, JTMS5
Standard
PC5
TX_ACTIVE
Standard
PC6
OSC32B
nTX_ACTIVE
Standard
PC7
OSC32A
Standard
Notes:
1. Overrides during reset as an input with pull up.
2. Overrides after reset as an open-drain output.
3. Overrides in JTAG mode as a input with pull up.
4. Overrides in JTAG mode as a push-pull output.
5. Overrides in Serial Wire mode as either a push-pull output, or a floating input, controlled by the debugger.



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