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SPI Mode and EEPROM Mode have a difference about an external connection, pin functions and control
signal flows. Do not change the Mode settings in the market products.
Control Setting
SPI Mode
SPI User Test Mode
EEPROM Mode
EEPROM User Test Mode
6.2.1
SPI Mode Setting and Connection
MCU and TC32306FTG are connected by SPI lines and MCU controls this IC.
6.2.2
EEPROM Mode Setting and Connection
EEPROM and MCU, connect via TC32306FTG. This IC is controlled by the register data of EEPROM.
Select up to 8 configuration that are made as registers from "h'0A" to "h'1C", depending on the size of
EEPROM. In this mode, use of pins and external connections are different from those of SPI Mode. For
example, TX_SW / RX_SW / ENB pin are used to select configuration of EEPROM.
Table 6-2 Mode of Control
MODE2 Pin MODE1 Pin
L
L
L
H
H
L
H
H
Table 6-3 Role of Pin and Control Setting
CS
CLK
MOSI
Pin
Pin
Pin
"Input"
This IC is slave,
controlled by MCU.
"Output"
This IC is master,
controls EEPROM.
"Input"
This IC is slave,
controlled by MCU.
MCU
Fig 6-4 Conceptual Connection MCU and TC32306FTG
Control Mode Setting
SPI Mode
SPI User Test Mode
EEPROM Mode
EEPROM User Test Mode
MISO Pin
"Output"
This IC is slave,
For this IC status
controlled by MCU.
"Input"
This IC is master,
reads EEPROM data.
"Output"
This IC is slave,
controlled by MCU.
MOSI
MISO
TC32306FTG
CLK
CS
13
TC32306FTG
TX_SW
ENB Pin
Pin
"Input"
"Output"
For antenna switches
control.
control.
"Input"
For EEPROM configuration settings
2015-10-01
RX_SW
Pin
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