diff options
Diffstat (limited to 'fdl/ch573/spi.fdl')
| -rw-r--r-- | fdl/ch573/spi.fdl | 31 |
1 files changed, 23 insertions, 8 deletions
diff --git a/fdl/ch573/spi.fdl b/fdl/ch573/spi.fdl index 855d17f..cec88f3 100644 --- a/fdl/ch573/spi.fdl +++ b/fdl/ch573/spi.fdl @@ -8,6 +8,7 @@ package ch573.spi { using ch573.common; type spi_t : struct { + assert_pos(0x0); /** SPI0 Control Mode Register */ reg ctrl_mod(8) : struct { /** SPI master/slave mode select */ @@ -18,18 +19,32 @@ package ch573.spi { wire_2_mod : bit_t; union { /** Clock idle mode select in master mode */ - mst_sck_mod : bit_t; + mst_sck_mod : enum(1) { + [[ c: unqualified ]] + CLOCK_IDLE_LOW = 0, + + [[ c: unqualified ]] + CLOCK_IDLE_HIGH = 1, + }; /** First byte command mode select in slave mode */ slv_cmd_mod : bit_t; }; /** FIFO direction setting bit */ - fifo_dir : bit_t; - /** SCK output enable bit */ - sck_oe : bit_t; - /** MOSI output enable bit */ - mosi_oe : bit_t; - /** MISO output enable bit */ - miso_oe : bit_t; + fifo_dir : enum(1) { + [[ c: unqualified ]] + FIFO_DIR_INPUT = 1, + + [[ c: unqualified ]] + FIFO_DIR_OUTPUT = 0, + }; + struct { + /** SCK output enable bit */ + sck_oe : enable_t; + /** MOSI output enable bit */ + mosi_oe : enable_t; + /** MISO output enable bit */ + miso_oe : enable_t; + } pin_enable; }; /** SPI0 Control Configuration Register */ |