User's Manual

Module Outlineand Pin Assignments
PIN
NAME TYPE FUNCTION
1
GNDGNDGround
2
Line_in_LP/
Mic-AP
Analog InputLeft channel +ve audio line in. (Also serves as Mic 1 +ve input in
BC835RPA)
3
Line_in_LN/
Mic-AN
Analog InputLeft channel-ve audio line in. (Also serves as Mic 1-ve input in
BC835RPA)
4
SPK_LNAnalog OutputLeft channel differential –ve audio output
5
SPK_LPAnalog OutputLeft channel differential +ve audio output
6
SPK_RPAnalog OutputRight channel differential –ve audio output
7
SPK_RPAnalog OutputRight channel differential +ve audio output
8
PIO13
Bi-directional
Programmable Input/Output line.
9
VPADPower1.8v / 3.3v power supply for all PIOs, UART port, on module
EEPROM and SPI programming ports.
10
Line_in_RP/
Mic-BP
Analog InputRight channel +ve audio line in. (Also serves as Mic 2 +ve input in
BC835RPA)
11
Line_in_RN/
Mic-BN
Analog InputRight channel-ve audio line in. (Also serves as Mic 2-ve input in
BC835RPA)
12
GNDGNDGround
13
PIO17
Bi-directional
Programmable Input/Output line.
14
PIO18
Bi-directional
Programmable Input/Output line.
15
PIO6
Bi-directional
Programmable Input/Output line.
16
GNDGNDGround
17
UART_TXCMOS OutputUART port data transmit output
18
UART_RXCMOS InputUART port data receive output
19
SPI_PCMBCMOS InputSPI programming port enable (high active).
20
LED0Open DrainLED output
21
LED1Open DrainLED output
22GNDGNDGround
23
RESETBCMOS inputReset if low. Input debounced so must be low for >5ms to cause a
reset