STM32W108HBU6 STMicroelectronics, STM32W108HBU6 Datasheet - Page 82
STM32W108HBU6
Manufacturer Part Number
STM32W108HBU6
Description
Manufacturer
STMicroelectronics
Datasheet
1.STM32W108HBU6.pdf
(208 pages)
Specifications of STM32W108HBU6
Operating Temperature (min)
-40C
Operating Temperature (max)
85C
Processing Unit
Microprocessor
Operating Supply Voltage (min)
1.18V
Operating Supply Voltage (typ)
1.25V
Operating Supply Voltage (max)
1.32V
Package Type
VFQFPN EP
Pin Count
40
Mounting
Surface Mount
Rad Hardened
No
Lead Free Status / Rohs Status
Supplier Unconfirmed
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
STM32W108HBU63
Manufacturer:
ST
Quantity:
201
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Part Number:
STM32W108HBU64TR
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TDK
Quantity:
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Serial interfaces
82/208
receive frame segment is determined with the SC_TWIACK bit in the SCx_TWICTRL2
register.
Figure 10. I
Generation of a 7-bit address is accomplished with one transmit segment. The upper 7 bits
of the transmitted character contain the 7-bit address. The remaining lower bit contains the
command type ("read" or "write").
Generation of a 10-bit address is accomplished with two transmit segments. The upper 5
bits of the first transmit character must be set to 0x1E. The next 2 bits are for the 2 most
significant bits of the 10-bit address. The remaining lower bit contains the command type
("read" or "write"). The second transmit segment is for the remaining 8 bits of the 10-bit
address.
Transmitted and received characters are accessed through the SCx_DATA register.
To initiate (re)start and stop segments, set the SC_TWISTART or SC_TWISTOP bit in the
SCx_TWICTRL1 register, then wait until the bit is clear. Alternatively, the SC_TWICMDFIN
bit in the SCx_TWISTAT can be used for waiting.
To initiate a transmit segment, write the data to the SCx_DATA data register, then set the
SC_TWISEND bit in the SCx_TWICTRL1 register, and finally wait until the bit is clear.
Alternatively the SC_TWITXFIN bit in the SCx_TWISTAT register can be used for waiting.
To initiate a receive segment, set the SC_TWIRECV bit in the SCx_TWICTRL1 register, wait
until it is clear, and then read from the SCx_DATA register. Alternatively, the SC_TWIRXFIN
bit in the SCx_TWISTAT register can be used for waiting. Now the SC_TWIRXNAK bit in the
SCx_TWISTAT register indicates if a NACK or ACK was received from an I
2
C segment transitions
RECEIVE Segment
STOP Segment
with NACK
Doc ID 16252 Rev 7
START Segment
IDLE
NO
TRANSMIT Segment
RECEIVE Segment
received ACK ?
STM32W108CB, STM32W108HB
with ACK
YES
2
C slave device.