Getting Started with EZ-BT WICED Modules
Document Number: 002-23400 Rev. **
74
details the available functions that can be configured on SuperMux capable GPIOs in
Table 12. GPIO SuperMux Input and Output Functions
Function
Input or
Output
Function Type
GPIOs
Required
Function Connection Description
SWD
Input
Serial Communication and
Debug
2
SWDCK, Serial Wire Debugger Clock
Input/Output
SWDIO, Serial Wire Debugger I/O
SPI 1
Input/Output
Serial Communication
(Master or Slave)
4 ~ 8
SPI 1 Clock
SPI 1 Chip Select
SPI 1 MOSI
SPI 1 MISO
SPI 1 I/O 2 (Quad SPI)
SPI 1 I/O 3 (Quad SPI)
SPI 1 Interrupt
Output
SPI 1 DCX (DBI-C DCX 8-bit mode)
SPI 2
Input/Output
Serial Communication
(Master or Slave)
4 ~ 8
SPI 2 Clock
SPI 2 Chip Select
SPI 2 MOSI
SPI 2 MISO
SPI 2 I/O 2 (Quad SPI)
SPI 2 I/O 3 (Quad SPI)
SPI 2 Interrupt
Output
SPI 2 DCX (DBI-C DCX 8-bit mode)
PUART
Input
Serial Communication
Input
4
Peripheral UART RX
Peripheral UART CTS
9
Output
Serial Communication
Output
Peripheral UART TX
Peripheral UART RTS
12
I
2
C
Input/Output
Serial Communication
(Master or Slave)
2
I2C Clock
I2C Data
I
2
C 2
Input/Output
Serial Communication
(Master or Slave)
2
I2C 2 Clock
I2C 2 Data
PCM In
Input
Audio Input
Communication
3
PCM Input
PCM Clock
PCM Sync
PCM Out
Output
Audio Output
Communication
3
PCM Output
PCM Clock
PCM Sync
I
2
S In
Input
Audio Input
Communication
3
I2S DI, Data Input
I2S WS, Word Select
I2S Clock
I
2
S Out
Output
Audio Output
Communication
3
I2S DO, Data Output
I2S WS, Word Select
I2S Clock
9
Flow control connections for the peripheral UART (PUART) are not supported in hardware. Hardware flow control is only supported on the HCI UART
connection. To enable flow control on the PUART interface, the flow control logic must be developed in the WICED application.