![NXP Semiconductors LPC43Sxx Скачать руководство пользователя страница 1218](http://html1.mh-extra.com/html/nxp-semiconductors/lpc43sxx/lpc43sxx_user-manual_17218271218.webp)
UM10503
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2015. All rights reserved.
User manual
Rev. 2.1 — 10 December 2015
1218 of 1441
NXP Semiconductors
UM10503
Chapter 44: LPC43xx/LPC43Sxx I2S interface
44.7.2.1.3
Transmitter master mode, sharing RX_MCLK
Table 1017.
Transmitter master mode, sharing RX_MCLK
CREG bit 12 DAO bit 5
TXMODE
bits [3:0]
Description
x
0
0 0 1 0
Transmitter master mode sharing the receiver reference clock (RX_MCLK).
The I2S transmit function operates as a master.
The transmit clock source is RX_MCLK.
The WS used is the internally generated TX_WS.
The TX_MCLK pin is not enabled for output.
Bold lines indicate the clock path for this configuration.
Fig 150.
Transmitter master mode, sharing RX_MCLK
I
2
S
peripheral
block
TXMODE[1:0]=10
TXMODE[2]=0
0
1
TX_SCK
RX_SCK
(1 to 64)
TX_MCLK
10
00
8-bit
Fractional
Rate Divider
X
Y
TXRATE[15:8]
TXRATE[7:0]
1
0
TXBITRATE[5:0]
RX_MCLK
0
1
TX_WS
RX_WS
DAO[5]=0
Pin OEn
I2S_TX_WS
I2S_TX_SDA
I2S_TX_MCLK
TXMODE[3]=0
Pin OE
I2S_TX_SCK
01
DAO[5]=0
0
1
CREG6[12]=X
0
1
PCLK
TXMODE[2]=0
BASE_AUDIO_CLK