ADE5166_08 AD [Analog Devices], ADE5166_08 Datasheet - Page 130

• Manufacturer Part Number: ADE5166_08
• Description: Single-Phase Energy Measurement IC with 8052 MCU, RTC, and LCD Driver
• Manufacturer: AD [Analog Devices]

ADE5166/ADE5169
For example, to get a baud rate of 9600 while operating at a core
clock frequency of 4.096 MHz, with the PLL CD bits equal to 0,
Note that the DIV result is rounded down.
Therefore, the actual baud rate is 9570 bps, which gives an error
of 0.31%.
UART2 ADDITIONAL FEATURES
Enhanced Error Checking
The extended UART2 provides frame error, break error, and
overwrite error detection. Framing errors occur when a stop bit
is not present at the end of the frame. A missing stop bit implies
DIV2 + SBTH2 = log(4,096,000/(16 × 9600))/log2 =
4.74 = 4
SBAUDF2 = 64 × (4,096,000/(16 × 2
42.67 = 0x2B
3
× 9600) − 1) =
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that the data in the frame may not have been received properly.
Break error detection indicates whether the RxD2 line is low for
longer than a 9-bit frame. It indicates that the data just received,
a 0 or NULL character, is not valid because the master has discon-
nected. Overwrite error detection indicates whether the received
data isn’t read fast enough and, as result, a byte of data is lost.
UART2 TxD2 Signal Modulation
There is an internal 38 kHz signal that can be read with the
UART2 transmit signal for use in remote control applications.
One of the events that can wake the MCU from sleep mode is
activity on the RxD2 (P0.7/ SS /T1/RxD2) pin. See the
Peripherals and Wake-Up Events
section for more information.
3.3 V