ZTE Corporation ZM8300G Manuale Utente
ZTE ZM8300G Module Hardware User Manual
<All rights reserved. No distribution without prior permission of ZTE.>
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interface. Note that the serial port is used only for module debugging and must not be used
for AT command interaction.
Table 3-5 Description of the DEBUG_UART Interface
Pin
Signal
I/O
Description
Remarks
15
DEBUG_UART_RX
I
To receive data
1.8 V power domain
16
DEBUG_UART_TX
O
To transmit data
1.8 V power domain
3.6 BLSP Interfaces
3.6.1
Pin Description
The design of ZM8300G interface include two groups 4-line BLSP（BAM（Bus access
manager）Low-speed Peripheral）interface.the interface is configured through UART、SPI、
I2C and GPIO by software.the default configuration of 2-line AT UART serial interface is
BLSPB_0/1. Desciption of interface configuration for BLSP showed table3-6.
Table 3-6 Configuration of BLSP Resources
Con
figu
rati
on
BLSPA
BLSPA_0 (PIN17)
BLSPA_1 (PIN18)
BLSPA_2 (PIN19)
BLSPA_3 (PIN20)
BLSPB
BLSPB_0 (PIN21)
BLSPB_1 (PIN22)
BLSPB_2 (PIN23)
BLSPB_3 (PIN24)
1
4-pin UART
UART_TX
DO
UART_RX
DI
UART_CTS
DI
UART_RTS
DO
2
2-pin UART
+ 2-pin I2C
UART_TX
DO
UART_RX
DI
I
2
C _SDA
B
I
2
C _SCL
B
3
4-pin SPI
SPI_MOSI
B
SPI_MISO
B
SPI_CS_N
B
SPI_CLK
B
4
2-pin GPIO
+ 2-pin I
2
C
GPIO_XX
B
GPIO_XX
B
I
2
C_SDA
B
I
2
C _SCL
B
5
4 GPIOS
GPIO_XX
B
GPIO_XX
B
GPIO_XX
B
GPIO_XX
B
6
2-pin UART
+2-pin GPIO
UART_TX
DO
UART_RX
DI
GPIO_XX
B
GPIO_XX
B
3.6.2
UART Interfaces
The BLSP pins of the ZM8300G module can be configured as two-pin and four-pin serial bus
UART interfaces. The ZM8300G module can perform serial data transmission and AT
communication with external devices using the UART interfaces. In addition to traditional
UART characteristics, the UART interfaces provided by the ZM8300G module have the