AN625
Rev. 0.1
7
3. Commands
3.1. Boot Commands
3.1.1. POWER_UP
Summary:
Power-up device and mode selection. Modes include operational function
Purpose:
Power-up the device with the specified function. Power-up is complete when the CTS bit is set. This command may take
longer to set the CTS bit than other commands.
Command Stream
Reply Stream
Parameters:
PATCH - Select patch mode.
0 = Boot normally.
1 = Copy image selected by FUNC to RAM, but do not boot. After CTS is set, RAM may be patched via
PATCH_ARGS and PATCH_DATA commands.
FUNC[5:0] - Selects the boot function of the device
0 = Boot Loader
1 = Transceiver
TCXO - Select if TCXO is in use.
0 = XTAL is not TCXO.
1 = XTAL is TCXO.
XO_FREQ[31:0] - Frequency of TCXO or external crystal oscillator in Hz. The default is 30000000 (30MHz).
Range: 25000000 to 32000000
Response:
None
POWER_UP Command
7
6
5
4
3
2
1
0
CMD
0x02
BOOT_OPTIONS
PATCH
0
FUNC[5:0]
XTAL_OPTIONS
0000000 TCXO
XO_FREQ
XO_FREQ[31:24]
XO_FREQ
XO_FREQ[23:16]
XO_FREQ
XO_FREQ[15:8]
XO_FREQ
XO_FREQ[7:0]
POWER_UP Reply
7
6
5
4
3
2
1
0
CMD_COMPLETE
CMD_COMPLETE[7:0]
Содержание Si446 Series
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