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1. PIN CONFIGURATION
OF
LPC2148

3. Lpc 2144/6//8 consists 45 GPIO functionality in is
2 port which as
1. Port0 (P0.0 to P0.31)- 24,26,27 are invisible pins,
remaining 29 are visible i/o pins.
2. Port1 (P1.16 to P0.31)- 16 pins are visible and 16
pins are invisible(P1.0-P1.15)

4. It consist of 19 different peripherals such as
FUNCTION PIN TYPE & DESCRIPTION
D+ 10 INPUT/OUTPUT(USB bidirectional D+ line)
D- 11 INPUT/OUTPUT(USB bidirectional D- line)
XTAL1 62
XTAL2 61
RTXC1 3 INPUT(Input to the RTC oscillator circuit)
RTXC2 5 OUTPUT(output to the RTC oscillator circuit)
VSS 6, 18 ,25,42,50
VSSA 52 INPUT(Analog Ground: 0 V reference)
VDD 23, 43, 51 (power supply)

5. • VDDA 7 INPUT(analog power supply)
• VREF 63 INPUT(A/D Converter Reference)
• VBAT 49 INPUT(RTC power supply)