GMS30C7201 Datasheet, PDF (280/352 Pages) Hynix Semiconductor – 60MHz operation frequency Low power consumption

Slow AMBA Peripherals
RX full
This bit is set when RX data buffer is full. If RX full bit goes HIGH,
a serial peripheral interrupt is generated. Clearing the RX full bit is
accomplished by reading the SPISR.
XCHCOUNTER register
9
0
XCHCOUNTER
XCHCOUNTER Number of bytes to be exchanged between CP and SPI.
Txdatabuffer register
This 8-bit register is an entry point of the TX FIFO. When CP writes an 8-bit data to this register,
the SPI-MMC block shifts the content of the TX FIFO and appends the new data to the FIFO.
Rxdatabuffer register
This register is the access point of the RX FIFO. When CP reads one data item from this register,
the SPI-MMC block shifts the RX FIFO so that the next data item becomes available at this
location.
Test register1
7
0
Testregister1
One bit data from MISO pin shifts in Testregister1 when SPICLK is rising.
Test register2
7
0
Testregister2
One bit data from MOSI pin shifts in Testregister2 when SPICLK is rising.
ResetReg
0
ResetReg
RESET
When CP writes 0 to this location, all registers and counters of the
SPI-MMC block are cleared.
TCLK register
When this register is read or written in the TIC mode, TCLK is generated.
13-52
GMS30C7201 Data Sheet