参数资料
型号: ADE7569ASTZF16
厂商: Analog Devices Inc
文件页数: 113/136页
文件大小: 0K
描述: IC ENERGY METER MCU 16K 64LQFP
标准包装: 1
输入阻抗: *
测量误差: *
电压 - 高输入/输出: *
电压 - 低输入/输出: *
电流 - 电源: *
电源电压: *
测量仪表类型: *
工作温度: *
安装类型: 表面贴装
封装/外壳: 64-LQFP
供应商设备封装: 64-LQFP(10x10)
包装: 托盘
Preliminary Technical Data
Table 129. Serial Port Buffer SFR (SBUF, 0x99)
ADE7566/ADE7569
Bit No.
7 to 0
Mnemonic
SBUF
Default
0
Description
Serial Port Data Buffer.
Table 130. Enhanced Serial Baud Rate Control SFR (SBAUDT, 0x9E)
Bit No.
7
Mnemonic
OWE
Default
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.
6
FE
0
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.
5
BE
0
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.
4, 3
2, 1, 0
SBTH1, SBTH0
DIV2, DIV1, DIV0
0
0
Extended divider ratio for baud rate setting as shown in Table 132.
Binary Divider.
DIV[2:0] Result
000 Divide by 1 (see Table 132).
001 Divide by 2 (see Table 132).
010 Divide by 4 (see Table 132).
011 Divide by 8 (see Table 132).
100 Divide by 16 (see Table 132).
101 Divide by 32 (see Table 132).
110 Divide by 64 (see Table 132).
111 Divide by 128 (see Table 132).
Table 131. UART Timer Fractional Divider SFR (SBAUDF, 0x9D)
Bit No.
7
Mnemonic
UARTBAUDEN
Default
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.
6
Not Implemented, Write Don’t Care.
5
4
3
2
1
0
SBAUDF.5
SBAUDF.4
SBAUDF.3
SBAUDF.2
SBAUDF.1
SBAUDF.0
0
0
0
0
0
0
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.
Rev. PrA | Page 113 of 136
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