参数资料
型号: ADE7518ASTZF8-RL
厂商: Analog Devices Inc
文件页数: 106/128页
文件大小: 0K
描述: IC ENERGY METER MCU 8K 64LQFP
产品变化通告: Product Discontinuance 27/Oct/2011
标准包装: 1,500
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: 带卷 (TR)
ADE7518
Table 122. Serial Port Buffer SFR (SBUF, 0x99)
Bit
7 to 0
Mnemonic
SBUF
Default
0
Description
Serial Port Data Buffer.
Table 123. Enhanced Serial Baud Rate Control SFR (SBAUDT, 0x9E)
Bit
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 does not have a valid stop bit. This bit is read
only and is 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, eight data bits, a parity bit, and half a stop bit. This
bit is updated every time a frame is received.
4, 3
2 to 0
SBTH[1:0]
DIV[2:0]
0
000
Extended divider ratio for baud rate setting, as shown in Table 125.
Binary Divider. See Table 125.
DIV[2:0] Result
000
001
010
011
100
101
110
111
Divide by 1.
Divide by 2.
Divide by 4.
Divide by 8.
Divide by 16.
Divide by 32.
Divide by 64.
Divide by 128.
Table 124. UART Timer Fractional Divider SFR (SBAUDF, 0x9D)
Bit
7
Mnemonic
UARTBAUDEN
Default
0
Description
UART Baud Rate Enable. Set to enable UART timer to generate the baud rate.
When this bit is 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. 0 | Page 106 of 128
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