Renesas SH7781 - Manual (Page 1183)

23. Serial Peripheral Interface (HSPI)
Rev.1.00 Jan. 10, 2008 Page 1153 of 1658
REJ09B0261-0100
23.2 Input/Output Pins
The input/output pins of the HSPI is shown in table 23.1.
Table 23.1 Pin Configuration
Pin Name Abbrev. I/O Description
Serial bit clock pin HSPI_CLK I/O Clock input/output
Transmit data pin HSPI_TX Output Transmit data output
Receive data pin HSPI_RX Input Receive data input
Chip select pin
HSPI_CS I/O
Chip select
23.3 Register Descriptions
Table 23.2 Register Configuration (1)
Register Name Abbrev. R/W P4 Address Area 7 Address Size
Sync
Clock
Control register SPCR R/W H'FFE5 0000 H'1FE5 0000 32 Pck
Status register SPSR R* H'FFE5 0004 H'1FE5 0004 32 Pck
System control register SPSCR R/W H'FFE5 0008 H'1FE5 0008 32 Pck
Transmit buffer register SPTBR R/W H'FFE5 000C H'1FE5 000C 32 Pck
Receive buffer register SPRBR R H'FFE5 0010 H'1FE5 0010 32 Pck
Note: For bits 4 and 3, only 0s can be written to clear the flags.