Pin Name
Pin Number Description
GND
1
Ground
PIO4
2
PIO5
3
PIO6
4
PIO7
5
PIO8
6
Programmable input/output line
AIO1
7
AIO0
8
Analogue programmable input/output
RESET
9
System Reset(Low Active)
GND
10
Ground
GND
11
Ground
PIO10
12
PIO11
13
PIO12
14
PIO13
15
Programmable input/output line
GND
16
Ground
VDD
17
Positive supply for SPI/PCM ports and PIO[15:4]
and BC05 MM Flash Pads, Connect to 3.3V
GND
18
Ground
VDD_Flash
19
Positive supply for Flash Memory ,Connect to 3.3V
VDD_USB
20
Positive supply for UART/USB ports
+1.8V
21
Switch-mode power regulator output
GND
22
Ground
USB_DP
23
USB data plus with selectable internal 1.5k
pull-up resistor
USB_DN
24
USB data minus
WP#
25
Flash write protect(Low Active)
GND
26
Ground
UART_RX
27
UART data input
UART_TX
28
UART data output
PCM_IN
29
Synchronous data input
PCM_SYNC
30
Synchronous data sync
PCM_CLK
31
Synchronous data clock
PCM_OUT
32
Synchronous data output
SPI_CSB
33
Chip select for SPI, active low
SPI_MOSO
34
SPI data output
SPI_CLK
35
SPI clock
