Renesas P9412 Manual page 51

P9412 Evaluation Board Manual
The detailed sequence of steps is as follows:
1. Clear all interrupts
a. Write 0xFFFF to register 0x3A
b. Write 0x20 to register 0x4E
2. Cap Divider mode should be enabled.
a. Read CD mode status register 0x100, it should read 0x02 if in Cap Divider mode.
b. If not, Write 0x02 to register 0x101
c. Write 0x40 to register 0x4E
d. Wait for CD_MODECHANGE_INT (0x37[3])
e. Clear CD_MODECHANGE interrupt
3. Enable Proprietary mode
a. Write 0x01 to register 0x4F
4. Wait for PropModeStatus interrupt, register 0x37[4].
a. Read the System Mode register 0x4C, it should read 0x03 if Proprietary mode is enabled.
b. If there was an error during Proprietary mode enable, Proprietary Error Status register (0xC9) is updated
with the error code.
c. Clear the PropModeStatus interrupt
5. Read TX potential power register (0xC4) to see TX max power capability. Value is in 0.5W units.
6. Request power. Supported range is between 7.5W to 30W.
a. Write requested power to register 0xC5 (in 0.5W units)
b. Write 0x02 to register 0x4F
7. Wait for PropModeStatus interrupt, register 0x37[4].
a. AP read the final achieved power at register 0xC6 (in 0.5W units)
b. If there are any errors from Status registers – PropModeStatus (0xC8) and PropErrStatus (0XC9)
c. Clear the PropModeStatus interrupt
Note: If any more power changes required, start from step 5. The first 4 steps are required only once for
enabling the proprietary mode.
A detailed flow chart is provided below.
Rev.1.7
Jul.8.20
Page 51