UC864-E Hardware User Guide

1vv0300766a Rev.1 - 31/01/08

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Pin Signal I/O Function Internal
Pull up Type
UC864-E
23 RX_TRACE I RX Data for debug monitor CMOS 2.6V
24 TX_TRACE O TX Data for debug monitor CMOS 2.6V
Prog. / Data + Hw Flow Control
25 C103/TXD I Serial data input (TXD) from DTE CMOS 2.6V
26 C104/RXD O Serial data output to DTE CMOS 2.6V
27 C107/DSR O Output for Data set ready signal (DSR) to DTE CMOS 2.6V
28 C106/CTS O Output fo r Clear to send signal (CTS) to DTE CMOS 2.6V
29 C108/DTR I Input for Data terminal ready signal (DTR) from DTE CMOS 2.6V
30 C125/RING O Output for Ring indicator signal (RI) to DTE CMOS 2.6V
31 C105/RTS I Input for Request to send signal (RTS) from DTE CMOS 2.6V
32 C109/DCD O Output for Data carrier detect signal (DCD) to DTE CMOS 2.6V
Miscellaneous Functions
35 USB_ID AI
Analog input used to sense whether a peripheral device is
connected, and determine the peripheral type, a host or a
peripheral
Analog
36 PCM_CLOCK I/O PCM clock out CMOS 2.6V
DAC and ADC
37 ADC_IN1 AI Analog/Digital converter input A/D
38 ADC_IN2 AI Analog/Digital converter input A/D
39 ADC_IN3 AI Analog/Digital converter input A/D
40 DAC_OUT AO Digital/Analog converter output D/A(PDM)
Miscellaneous Functions
45 STAT_LED O Status indicator led CMOS 1.8V
46 GND - Ground Ground
48 USB_VBUS AI
/AO
Power supply for the internal USB transceiver. This pin is
configured as an analog input or an analog output depending
upon the type of peripheral device connected.
4.4V ~5.25V
49 PWRMON O Power ON Monitor CMOS 2.6V
50 VAUX1 - Power output for external accessories 2.85V
51 CHARGE AI Charger input Power
52 CHARGE AI Charger input Power
53 ON/OFF* I Input command for switching power ON or OFF (toggle
command). Pull up to
VBATT
54 RESET# I Reset input
55 VRTC AO VRTC Backup capacitor Power
Telit GPIOs
56 TGPIO_19 I/O Telit GPIO19 Configurable GPI O CMOS 2.6V
57 TGPIO_11 I/O Telit GPIO11 Configurable GPI O CMOS 2.6V
58 TGPIO_20 I/O Telit GPIO20 Configurable GPI O CMOS 2.6V
59 TGPIO_04 I/O Telit GPIO4 Configurable GPI O CMOS 2.6V
60 TGPIO_14 I/O Telit GPIO14 Configurable GPI O CMOS 2.6V