Nations Technologies Inc.
Tel
:
+86-755-86309900
:
Address: Nations Tower, #109 Baoshen Road, Hi-tech Park North.
Nanshan District, Shenzhen, 518057, P.R.China
510
/
631
Bit field
Name
Description
31:8
Reserved
Reserved, the reset value must be maintained.
7:0
DECIMAL[7:0]
Baud rate configuration register 2 is used for baud rate error correction at low
frequencies.For example,
If the baud rate is 4800bps and the clock frequency is 32768Hz.
LPUARTDIV = 32768/4800 = 6.8266
LPUART_BRCFG1 = 6.In this case, to correct the baud rate error, you should
configure register 2 with baud rate. For details on how to configure register 2, refer
to the section "Fractional baud rate generation".
LPUART wake up data register (LPUART_WUDAT)
Address offset: 0x18
Reset value: 0x0000 0000
Bit field
Name
Description
31:0
WUDAT[31:0]
When LPUART_CTRL.WUSEL[1:0] = 1x, WUDAT[31:0] is used to check
whether the conditions for wake up from STOP2 mode is matched (byte match or
frame match):
LPUART_CTRL.WUSEL[1:0] = 10 is used to wake up byte matching. In this case,
the first byte is valid
LPUART_CTRL.WUSEL[1:0] = 11 is used to wake up frame matching. In this
case, all 4 bytes are valid