_svd: ../svd/atmega8.svd

_include:
  - "common/ac.yaml"
  - "common/adc.yaml"
  - "common/spi.yaml"

  - "timer/atmega8.yaml"

TWI:
  TWCR:
    _modify:
      TWWC:
        access: read-only
  TWSR:
    _modify:
      TWS:
        access: read-only
    TWPS:
      _replace_enum:
        PRESCALER_1: [0, "Prescaler Value 1"]
        PRESCALER_4: [1, "Prescaler Value 4"]
        PRESCALER_16: [2, "Prescaler Value 16"]
        PRESCALER_64: [3, "Prescaler Value 64"]

USART:
  UCSRA:
    _modify:
      PE:
        access: read-only
      DOR:
        access: read-only
      FE:
        access: read-only
      UDRE:
        access: read-only
      TXC:
        description: "USART Transmit Complete"
      RXC:
        access: read-only
  UCSRB:
    _modify:
      RXB8:
        access: read-only
  UCSRC:
    UMSEL:
      _replace_enum:
        USART_ASYNC: [0, "Asynchronous USART"]
        USART_SYNC:  [1, "Synchronous USART"]
    UPM:
      _replace_enum:
        DISABLED:    [0, "Disabled"]
        PARITY_EVEN: [2, "Enabled, Even Parity"]
        PARITY_ODD:  [3, "Enabled, Odd Parity"]
    USBS:
      _replace_enum:
        STOP1: [0, "1-bit"]
        STOP2: [1, "2-bit"]
    UCSZ:
      _replace_enum:
        CHR5: [0, "Character Size: 5 bit"]
        CHR6: [1, "Character Size: 6 bit"]
        CHR7: [2, "Character Size: 7 bit"]
        CHR8: [3, "Character Size: 8 bit"]
    UCPOL:
      _replace_enum:
        RISING_EDGE:  [0, "Transmit on Rising XCK Edge, Receive on Falling XCK Edge"]
        FALLING_EDGE: [1, "Transmit on Falling XCK Edge, Receive on Rising XCK Edge"]

WDT:
  WDTCR:
    _delete:
      - WDP
    _add:
      WDPL:
        description: "Watchdog Timer Prescaler - Low Bits"
        bitRange: "[2:0]"
    WDPL:
      CYCLES_16K:      [0, "- 16K (16384) cycles, ~16ms"]
      CYCLES_32K:      [1, "- 32K (32768) cycles, ~32ms"]
      CYCLES_64K:      [2, "- 64K (65536) cycles, ~65ms"]
      CYCLES_128K:     [3, "- 128K (131072) cycles, ~0.13s"]
      CYCLES_256K:     [4, "- 256K (262144) cycles, ~0.26s"]
      CYCLES_512K:     [5, "- 512K (524288) cycles, ~0.52s"]
      CYCLES_1024K:     [6, "- 1024K (1048576) cycles, ~1.0s"]
      CYCLES_2048K:     [7, "- 2048K (2097152) cycles, ~2.1s"]