STMPE2403TBR STMicroelectronics, STMPE2403TBR Datasheet - Page 19

• Manufacturer Part Number: STMPE2403TBR
• Description: IC I/O EXPANDER I2C 24B 36TFBGA
• Manufacturer: STMicroelectronics

Specifications of STMPE2403TBR

• Interface: I²C
• Number Of I /o: 24
• Interrupt Output: Yes
• Frequency - Clock: 400kHz
• Voltage - Supply: 1.65 V ~ 1.95 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 36-TFBGA
• Includes: Keypad, POR, PWM
• For Use With: 497-8206 - BOARD DEMO EXPANDER STMPE2403
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

STMPE2403
7.2
Table 19. System control register
Table 20. System control register writing
Write (IIC)
Read/
Reset
Value
Bits
Bit
0
1
2
3
4
5
6
7
Soft_Reset Clock_Source Disable_32KHz Sleep Enable_GPIO Enable_PWM Enable_KPC Enable_ROT
System control register
W
Disable_32KHz
7
0
Enable_GPIO
Clock_Source
Enable_PWM
Enable_ROT
Enable_KPC
Soft_Reset
Name
Sleep
RW
6
0
Writing a ‘0’ to this bit will gate off the clock to the Rotator module, thus
stopping its operation
Writing a ‘0’ to this bit will gate off the clock to the Keypad Controller module,
thus stopping its operation
Writing a ‘0’ to this bit will gate off the clock to the PWM module, thus
stopping its operation
Writing a ‘0’ to this bit will gate off the clock to the GPIO module, thus
stopping its operation
Writing a ‘1’ to this bit will put the device in sleep mode. When in sleep
mode, all the units will work on 32KHz (typical) clock frequency.
Set this bit to disable the 32KHz OSC, thus putting the device in hibernate
mode. Only a Reset or a wakeup on IIC will reset this bit
Set to ‘1’ if external 32KHz clock were to be used. ‘0’ by default.
Writing a ‘1’ to this bit will do a soft reset of the device. Once the reset is
done, this bit will be cleared to ‘0’ by the HW.
RW
5
0
RW
4
0
RW
3
1
Description
RW
2
1
RW
System controller
1
1
RW
0
1
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