Uart; Diagram Of Uart Connection - Hytera PT580 Service Manual

2.2.6 UART

The MCU has 3 UART interfaces: UART1, UART2 and UART 3. The communication rate can be up to
1.5Mbps. The UART connection is shown in Figure 13. The UART2 interface is connected to the
accessory jack for upgrading and programming, while the UART1 and UART3 interfaces are reserved.
U2001
MCU
2
2.2.7 I C
The MCU provides one I
UART1.TX
UART1.RX
UART2.TX
UART2.RX
UART3.TX
UART3.RX
UART3.RTS
UART3.CTS
Figure 13 Diagram of UART Connection
2
C interface for the MCU to control the PMU and RTC.
U2001
MCU
I2C.SDA
I2C.SCL
Figure 14 Diagram of I
RXA
TXA
RXA
TXA
UART_RXD
UART_TXD
UART_CTS
UART_RTS
SDA
SCL
SDA
SCL
SDA
Reserve
SCL
2
C Connection
15
Service Manual
J2502
Reserve
J2501
PC
U2501
Reserve
PMU
RTC