2 shi host transmit data register (htx)-dsp side, 3 shi host receive data fifo (hrx)-dsp side, 4 shi slave address register (hsar)-dsp side – Freescale Semiconductor DSP56366 User Manual
Page 130: Shi host transmit data register (htx)—dsp side -6, Shi host receive data fifo (hrx)—dsp side -6, Shi slave address register (hsar)—dsp side -6, Figure 7-5, Shi i/o shift register (iosr) -6, Side, 2 shi host transmit data register (htx)—dsp side
