Spi; Pcm; Table 3-2 I2C Interface Signal Definitions; Table 3-3 Spi Interface Signal Definitions - Zte MG2639_V3 User Manual

Classification No.
53
I2C
54
Note: the software doesn't support this interface by default, therefore it requires
customization.

3.1.4 SPI

MG2639_V3 module provides one SPI BUS interface, SPICS & SPISCK signal multiplex with the
I2C interface, while SPIMOSI & SPIMISO signals multiplex with the UART interface. When UART2 and
I2C function are not used, it can be configured as the SPI interface.
Classification No.
53
54
SPI
29
30
Note: the software doesn't support this interface by default, therefore it requires
customization.

3.1.5 PCM

MG2639_V3 module adopts its 56-60 PINs as the PCM interface, through which users can expand
the audio DAC.
Classification No.
56
57
PCM
58
59
60
Note: the software doesn't support this interface by default, therefore it requires
customization.
This document is not allowed to
transmit without ZTE Corporation's
permission

Table 3-2 I2C interface signal definitions

Definitions I/O
SDA I/O
SCL Output

Table 3-3 SPI Interface signal definitions

Definitions I/O
SPICS Output
SPISCK Output
SPIMOSI Input
SPIMISO Output

Table 3-4 PCM interface signal definitions

Definitions I/O
PCMRST Output
PCMOUT Output
PCMCLK Output
PCMSYNC Output
PCMIN Input
©ZTE CORPORATION All rights reserved
Description
I2C data
cable
I2C clock
cable
Description
SPI chip select
SPI clock
SPI data input
SPI data output
Description
Reset external PCM
settings
PCM data output
PCM clock
PCM bytes SYNC
PCM data input
User Manual
Remarks
2.8V IO
2.8V IO
Remarks
2.8V IO
2.8V IO
2.8V IO
2.8V IO
Remarks
2.8V IO
2.8V IO
2.8V IO
2.8V IO
2.8V IO
13