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90% of COM_VDD
0V
Fig 6-6 Example of RESET Pin Control in Starting Operation
- Software Reset
Software Reset will start after write "b'01010101" to register: h'09[D7:D0]RESET7..0. TC32306FTG
will be reset as soon as the writing of Software Reset. Then the reset is released by next rising edge of
CLK Signal or CS Signal, whichever is earlier. This IC will stay Battery Saving Status till the next
Run / Standby command writing.
Notice:
-
Not available in EEPROM Mode (Except EEPROM User Test Mode)
-
At Software Reset, only the register will be reset.
-
TC32306FTG will output "b'00000000" to read the register: h'09[D7:D0]RESET7..0.
6.3.2
Status Control
After reset is released, TC32306FTG has three status, Battery Saving / Standby / Run, then those
status are controlled by two registers "h'0A[D7] / h'0A[D6]" and ENB pin. In EEPROM Mode, ENB pin
is used for configuration setting.
MODE2
ENB
h'0A[D7]ENB
Pin
Pin
L
L
X
L
H
0
L
H
1
L
H
1
In SPI Mode, MODE 1 pin is unrelated to the status control of TC32306FTG. Moving to Battery Saving
by AutoOff function, registers"h'0A[D7] ENB, h'0A[D6] ACT" keep the value "1".
Example of RESET pin control
1µs≤
Table 6-5 Software Reset Command
Software Reset Command
h'09[D7:D0]RESET7..0 = b'01010101
Table 6-6 IC Status in SPI Mode
h'0A[D6]ACT
Status
X
Battery
Saving
X
0
Standby
1
Run
15
Description
The lowest current consumption status. TC32306FTG only
can accept control data (register setting) and control settings
and they can be changed. The transition from this status to
Run will spend longer time than Standby
This IC can move from this status to Run quickly. This IC can
accept control data and operate XOSC and regulators, and
consume more current than Battery Saving.
This IC can operate TX and RX. This IC current consumption
and status transition time depend on the behaviors.
TC32306FTG
COM_VDD
X: Don't care
2015-10-01
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