sta8088ex STMicroelectronics, sta8088ex Datasheet - Page 23

• Manufacturer Part Number: sta8088ex
• Description: High Flexible Gps/galileo/glonass/qzss Receiver With Powerful Processing Arm9
• Manufacturer: STMicroelectronics

STA8088EX
3.4.12
used to wake the system up when a programmed alarm time is reached. It has a clock
trimming feature to compensate for the accuracy of the 32.768 kHz crystal and a secured
time update.
RTC features
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MSP
The STA8088EX provides one MSP block.
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48-bit counter clocked by 32768 kHz clock
32-bit for the integer part (seconds) and 16-bit for the fractional part
The integer part and the fractional part are readable independently
The counter, once enabled, can be stopped
Integer part load register (32-bit)
Fractional part load register (16-bit)
Load bit to transfer the content of the entire load register (integer + fractional part) to
the 48-bit counter. Once set by the MCU this bits is cleared by the hardware to signal to
the MCU that the RTC has been updated.
Phillips I
Synchronization and first data bit, 16 or 24 bits per sample
Sony format: right aligned, 48 cycles per frame, 16 or 24 bits per sample,
Matsushita format: right aligned, 64 cycles per frame, 16 or 24 bits per sample,
Programmable number of bit clock cycles per frame: 32, 48 and 64,
Programmable polarity of bit clock and frame synchronization,
Programmable number of bits per sample: 16, 18, 20 and 24 bits.
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S format: left aligned with one cycle between leading edge of frame
Doc ID 18357 Rev 1
General description
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