Datasheet
AD5362/AD5363
Rev. A | Page 24 of 28
SPECIAL FUNCTION MODE
If the mode bits are 00, the special function mode is selected, as shown in Table 15. Bit I21 to Bit I16 of the serial data-word select the
special function, and the remaining bits are data required for execution of the special function, for example, the channel address for data
readback. The codes for the special functions are shown in Table 16. Table 17 shows the addresses for data readback.
Table 15. Special Function Mode
I23 I22 I21 I20 I19 I18 I17 I16 I15 I14 I13 I12 I11 I10 I9 I8 I7 I6 I5 I4 I3 I2 I1 I0
0 0 S5 S4 S3 S2 S1 S0 F15 F14 F13 F12 F11 F10 F9 F8 F7 F6 F5 F4 F3 F2 F1 F0
Table 16. Special Function Codes
Special Function Code
Data (F15 to F0) Action
S5 S4 S3 S2 S1 S0
0 0 0 0 0 0 0000 0000 0000 0000 NOP.
0 0 0 0 0 1 XXXX XXXX XXXX X [F2:F0] Write control register.
F4 = 1: Temperature over 130°C.
F4 = 0: Temperature below 130°C.
Read-only bit. This bit should be 0 when writing to the control register.
F3 = 1: PEC
error.
F3 = 0: No PEC
error. Reserved.
Read-only bit. This bit should be 0 when writing to the control register.
F2 = 1: Select Register X1B for input.
F2 = 0: Select Register X1A for input.
F1 = 1: Enable thermal shutdown mode.
F1 = 0: Disable thermal shutdown mode.
F0 = 1: Software power-down.
F0 = 0: Software power-up.
0 0 0 0 1 0 XX [F13:F0] Write data in F13 to F0 to OFS0 register.
0 0 0 0 1 1 XX [F13:F0] Write data in F13 to F0 to OFS1 register.
0 0 0 1 0 0 Reserved
0 0 0 1 0 1 See Table 17 Select register for readback.
0 0 0 1 1 0 XXXX XXXX XXXX [F3:F0] Write data in F3 to F0 to A/B Select Register 0.
0 0 0 1 1 1 XXXX XXXX XXXX [F3:F0] Write data in F3 to F0 to A/B Select Register 1.
0 0 1 0 0 0 Reserved
0 0 1 0 0 1 Reserved
0 0 1 0 1 0 Reserved
0 0 1 0 1 1 XXXX XXXX [F7:F0] Block write to A/B select registers.
F7 to F0 = 0: Write all 0s (all channels use X2A register).
F7 to F0 = 1: Write all 1s (all channels use X2B register).
0 0 1 1 0 0 XXXX XXXX XX [F5:F0] F5 = 1: Monitor enable.
F5 = 0: Monitor disable.
F4 = 1: Monitor input pin selected by F0.
F4 = 0: Monitor DAC channel selected by F3:F0 (see Table 10).
F3 = not used if F4 = 1.
F2 = not used if F4 = 1.
F1 = not used if F4 = 1.
F0 = 0: MON_IN0 selected for monitoring (if F4 and F5 = 1).
F0 = 1: MON_IN1 selected for monitoring (if F4 and F5 = 1).
0 0 1 1 0 1 XXXX XXXX XXXX XX [F1:F0] GPIO configure and write.
F1 = 1: GPIO is an output. Data to output is written to F0.
F1 = 0: GPIO is an input. Data can be read from F0 on readback.