---
name: CH54x Series
mcu_type: 2
device_type: 0x12
support_usb: true
support_serial: true
support_net: false
# CH540-CH542 is not supported yet
description: CH54x (E8051) Series
config_registers: &config_registers_ch548_ch549
  - offset: 0x00
    name: REG0
    reset: 0x00000000
  - offset: 0x04
    name: REG1
    reset: 0x00000000
    fields:
      - bit_range: [7, 0]
        name: REG1_0
  # section 6.2
  - offset: 0x08
    name: REG2
    reset: 0x0000D200
    fields:
      - bit_range: [2, 0]
        name: LV_RST_VOL
        explaination:
          0b000: 2.4V
          0b001: 2.4V
          0b010: 2.7V
          0b011: 3.0V
          0b100: 3.6V
          0b101: 4.0V
          0b110: 4.3V
          0b111: 4.6V
      - bit_range: [8, 8]
        name: MUST_0
      - bit_range: [9, 9]
        name: MUST_1
      - bit_range: [12, 12]
        name: En_P5.7_RESET
      - bit_range: [13, 13]
        name: En_Long_Reset
      - bit_range: [14, 14]
        name: No_Boot_Load
      - bit_range: [15, 15]
        name: Code_Protect
variants:
  - name: CH543
    chip_id: 67
    flash_size: 14336
    eeprom_size: 1024
    eeprom_start_addr: 14336
    support_serial: false

  - name: CH544
    flash_size: 61440
    eeprom_size: 1024
    chip_id: 68
    eeprom_start_addr: 61440

  - name: CH545
    flash_size: 61440
    eeprom_size: 1024
    chip_id: 69
    eeprom_start_addr: 61440

  - name: CH546
    flash_size: 32768
    eeprom_size: 1024
    chip_id: 70
    eeprom_start_addr: 61440

  - name: CH547
    flash_size: 61440
    eeprom_size: 1024
    chip_id: 71
    eeprom_start_addr: 61440

  - name: CH548
    flash_size: 32768
    eeprom_size: 1024
    chip_id: 72
    eeprom_start_addr: 61440
    config_registers: *config_registers_ch548_ch549

  - name: CH549
    flash_size: 61440
    eeprom_size: 1024
    chip_id: 73
    eeprom_start_addr: 61440
    config_registers: *config_registers_ch548_ch549