Datasheet

Table Of Contents
Rev. 0 | Page 21 of 112 | June 2013
ADSP-BF606/ADSP-BF607/ADSP-BF608/ADSP-BF609
RSI_CLK Output Clock The clock signal applied to the connected device from the RSI.
RSI_CMD I/O Command Used to send commands to and receive responses from the connected device.
RSI_Dn I/O Data n Bidirectional data bus.
SMC_ABEn
Output Byte Enable n Indicate whether the lower or upper byte of a memory is being accessed. When an
asynchronous write is made to the upper byte of a 16-bit memory, SMC_ABE1
=0 and SMC_ABE0 =1.
When an asynchronous write is made to the lower byte of a 16-bit memory, SMC_ABE1 =1 and
SMC_ABE0
=0.
SMC_AMSn
Output Memory Select n Typically connects to the chip select of a memory device.
SMC_Ann Output Address n Address bus.
SMC_AOE
Output Output Enable Asserts at the beginning of the setup period of a read access.
SMC_ARDY Input Asynchronous Ready Flow control signal used by memory devices to indicate to the SMC when further
transactions may proceed.
SMC_ARE
Output Read Enable Asserts at the beginning of a read access.
SMC_AWE
Output Write Enable Asserts for the duration of a write access period.
SMC_BG
Output Bus Grant Output used to indicate to an external device that it has been granted control of the SMC
buses.
SMC_BGH
Output Bus Grant Hang Output used to indicate that the SMC has a pending transaction which requires control
of the bus to be restored before it can be completed.
SMC_BR Input Bus Request Input used by an external device to indicate that it is requesting control of the SMC buses.
SMC_Dnn I/O Data n Bidirectional data bus.
SMC_NORCLK Output NOR Clock Clock for synchronous burst mode.
SMC_NORDV Output NOR Data Valid Asserts for the duration of a synchronous burst mode read setup period.
SMC_NORWT Input NOR Wait Flow control signal used by memory devices in synchronous burst mode to indicate to the
SMC when further transactions may proceed.
SPI_CLK I/O Clock Input in slave mode, output in master mode.
SPI_D2 I/O Data 2 Used to transfer serial data in quad mode. Open drain in ODM mode.
SPI_D3 I/O Data 3 Used to transfer serial data in quad mode. Open drain in ODM mode.
SPI_MISO I/O Master In, Slave Out Used to transfer serial data. Operates in the same direction as SPI_MOSI in dual
and quad modes. Open drain in ODM mode.
SPI_MOSI I/O Master Out, Slave In Used to transfer serial data. Operates in the same direction as SPI_MISO in dual
and quad modes. Open drain in ODM mode.
SPI_RDY I/O Ready Optional flow signal. Output in slave mode, input in master mode.
SPI_SELn
Output Slave Select Output n Used in master mode to enable the desired slave.
SPI_SS
Input Slave Select Input Slave mode: acts as the slave select input. Master mode: optionally serves as an error
detection input for the SPI when there are multiple masters.
SPT_ACLK I/O Channel A Clock Data and frame sync are driven/sampled with respect to this clock. This signal can be
either internally or externally generated.
SPT_AD0 I/O Channel A Data 0 Primary bidirectional data I/O. This signal can be configured as an output to transmit
serial data, or as an input to receive serial data.
SPT_AD1 I/O Channel A Data 1 Secondary bidirectional data I/O. This signal can be configured as an output to
transmit serial data, or as an input to receive serial data.
SPT_AFS I/O Channel A Frame Sync The frame sync pulse initiates shifting of serial data. This signal is either
generated internally or externally.
SPT_ATDV Output Channel A Transmit Data Valid This signal is optional and only active when SPORT is configured in
multi-channel transmit mode. It is asserted during enabled slots.
SPT_BCLK I/O Channel B Clock Data and frame sync are driven/sampled with respect to this clock. This signal can be
either internally or externally generated.
SPT_BD0 I/O Channel B Data 0 Primary bidirectional data I/O. This signal can be configured as an output to transmit
serial data, or as an input to receive serial data.
Table 6. Detailed Signal Descriptions (Continued)
Signal Name Direction Description