Microchip Technology ARD00330 データシート

Communication Protocol

DS51964A-page 60

4.1.1.4

“W” WRITE: WRITE STARTING AT SPECIFIED ADDRESS

Write the specified bytes.
Example: ‘W030000102030405060708090A0B0C0D0E0FX’.
Returns: ‘W030000102030405060708090A0B0C0D0E0FX’.

FIGURE 4-1:

WRITE Command Protocol.

4.1.1.5

“R” READ: READ STARTING AT SPECIFIED ADDRESS

Example: ‘R03010X’ (read 16 bytes starting at address 30h).
Returns: ‘R030000102030405060708090A0B0C0D0E0FX’.

FIGURE 4-2:

READ Command Protocol.

Note: If the number of data characters is odd, the last character (the one just prior

to the ‘X’) will be ignored.

Command Byte

7 6 5 4 3 2 1 0

3 Address Bytes (ASCII)

7 6 5 4 3 2 1 0 7 6 5

3 2 1 0

7 6 5 4 3 2 1 0

7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0

ASCII Data

TABLE 4-1:

WRITE COMMAND EXAMPLES

Description

Command ASCII

Command Hex

WRITE of 255d to
OFFSET_POWER_ACT
Register

“W 170 00 F F X”

57 31 37 30 30 30 46 46 58

“X” (ASCII)

7 6 5 4 3 2 1 0

Note: For 16 bytes, there are 32 ASCII characters returned, or two characters per

byte.

Command Byte

7 6 5 4 3 2 1 0

3 Address Bytes (ASCII)

7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0

7 6 5 4 3 2 1 0

# Bytes to Read (2 Bytes ASCII)

7 6 5 4 3 2 1 0

“X” (ASCII)

TABLE 4-2:

READ COMMAND EXAMPLES

DESCRIPTION

COMMAND ASCII

COMMAND HEX

READ on RAW_ENERGY_ACT Register

“R 0D4 06 X”

52 00 44 34 30 36 58