ADE7566ASTZF8-RL2 AD [Analog Devices], ADE7566ASTZF8-RL2 Datasheet - Page 113
ADE7566ASTZF8-RL2
Manufacturer Part Number
ADE7566ASTZF8-RL2
Description
Single-Phase Energy Measurement IC with 8052 MCU, RTC, and LCD Driver
Manufacturer
AD [Analog Devices]
Datasheet
1.ADE7566ASTZF8-RL2.pdf
(136 pages)
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Preliminary Technical Data
Table 129. Serial Port Buffer SFR (SBUF, 0x99)
Bit No.
7 to 0
Table 130. Enhanced Serial Baud Rate Control SFR (SBAUDT, 0x9E)
Bit No.
7
6
5
4, 3
2, 1, 0
Table 131. UART Timer Fractional Divider SFR (SBAUDF, 0x9D)
Bit No.
7
6
5
4
3
2
1
0
Mnemonic
OWE
FE
BE
SBTH1, SBTH0
DIV2, DIV1, DIV0
Mnemonic
UARTBAUDEN
–
SBAUDF.5
SBAUDF.4
SBAUDF.3
SBAUDF.2
SBAUDF.1
SBAUDF.0
Mnemonic
SBUF
Default
0
0
0
0
0
0
0
Default
0
0
0
0
0
Description
UART Baud Rate Enable. Set to enable UART timer to generate the baud rate. When set,
PCON.7 (SMOD), T2CON.4 (TCLK), and T2CON.5 (RCLK) are ignored.
Cleared to let the baud rate be generated as per a standard 8052.
Not Implemented, Write Don’t Care.
UART Timer Fractional Divider Bit 5.
UART Timer Fractional Divider Bit 4.
UART Timer Fractional Divider Bit 3.
UART Timer Fractional Divider Bit 2.
UART Timer Fractional Divider Bit 1.
UART Timer Fractional Divider Bit 0.
Description
Overwrite Error. This bit is set when new data is received and RI = 1. It indicates that SBUF was not
read before the next character was transferred in, causing the prior SBUF data to be lost. Write a 0 to
this bit to clear it.
Frame Error. This bit is set when the received frame did not have a valid stop bit. This bit is read only
and updated every time a frame is received.
Break Error. This bit is set whenever the receive data line (Rx) is low for longer than a full transmission
frame, which is the time required for a start bit, 8 data bits, a parity bit, and half a stop bit. This bit is
updated every time a frame is received.
Extended divider ratio for baud rate setting as shown in Table 132.
Binary Divider.
DIV[2:0]
000
001
010
011
100
101
110
111
Default
0
Result
Divide by 1 (see Table 132).
Divide by 2 (see Table 132).
Divide by 4 (see Table 132).
Divide by 8 (see Table 132).
Divide by 16 (see Table 132).
Divide by 32 (see Table 132).
Divide by 64 (see Table 132).
Divide by 128 (see Table 132).
Rev. PrA | Page 113 of 136
Description
Serial Port Data Buffer.
ADE7566/ADE7569
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