Data Sheet

Bluegiga Technologies Oy
Page 34 of 52
theory the Debug UART can be used for other UART applications instead of debugging, but it is primarily
intended for simple console access to the processor.
For further information, please refer to the i.MX28 Applications Processor Reference Manual, chapter 30.
6.7 CAN
Pin#
Function
Net name
76
CAN 0 transmit
GPMI_RDY2*
78
CAN 1 transmit
GPMI_CE2*
79
CAN 1 receive
GPMI_CE3*
81
CAN 0 receive
GPMI_RDY3*
Table 43: CAN
The standard model does not include CAN support and pins 76, 78, 79 and 81 are not to be connected as
they cannot be used.
On the model with CAN support, the pins can be used as described in the i.MX28 Applications Processor
Reference Manual, chapter 25.
6.8 Processor Audio
Pin#
Audio function
SAIF 0
SAIF 1
Alternate functions
Net name
83
Master clock
MCLK
AUART4 CTS
SAIF0_MCLK
84
Data line
SDATA1
SDATA0
PWM 7
SAIF1_SDATA0
85
Data line
SDATA0
AUART4 TX, PWM 6
SAIF0_SDATA0
86
Bit clock
BITCLK
AUART4 RX, PWM 5
SAIF0_BITCLK
87
Left/Right clock
LRCLK
AUART4 RTS, PWM 4
SAIF0_LRCLK
63
Data line
SDATA2
UART 2 TX
SSP2_MOSI
64
Data line
SDATA1
UART 2 RX
SSP2_SCK
67
Data line
DATA2
UART 3 TX
SSP2_SS0
68
Data line
DATA1
UART 3 RX
SSP2_MISO
Table 44: AUDIO
The serial audio interface provides a serial interface to the industry’s most common analog codecs. On the
processor side, there are two serial audio interface subsystems, SAIF0 and SAIF1. These two can be used
together to provide full-duplex stereo audio transfers, where SAIF0 is used as an output and for managing the
clocks while SAIF1 is used as a slave to SAIF0 and for audio input.