Synopsys中ralgen中ralf的写法

只有一个block时；

register UARTIBRD {
  bytes 4;
  left_to_right;
  field not_defined {
    bits 16;
    access ro;
    reset 'h0;
  }
  field rev {
    bits 5;
    access rw;
    reset 'h0;
  }
}
block uart_reg { 
  bytes 4;
  register UARTDR @'h300;
  register UARTRSR @'h004;
}

当有多个block时的写法如下：

register UARTIBRD {
  bytes 4;
  left_to_right;
  field not_defined {
    bits 16;
    access ro;
    reset 'h0;
  }
  field rev {
    bits 5;
    access rw;
    reset 'h0;
  }
}
block uart_reg { 
  bytes 4;
  register UARTDR @'h300;
  register UARTRSR @'h004;
}
block spi_reg {
  bytes 4;
  register SPI @ 'h001;
  register SAD @ 'h004;
}
system top {
  bytes 4;
  block uart_reg @'h001; 
  block spi_reg  @'h004;
}