Hytera RD982 - Page 22

Service Manual
TX
OMAP5912
U102
USB0_DM(R8)
USB0_DP(P9)
DB26(J701)
USB_D+
USB_D-
10pin Jack
USB_D+
USB_D-
DB9(J601)
USB_D+
USB_D-
Figure 6-18 Diagram of USB Interface
6.2.12 UART
OMAP5912 has 3 UART interfaces: UART1, UART2 and UART3. It supports hardware flow control. The
communication rate can be up to 1.5Mbps. See the following figure:
TX OMAP5912
(TX)
UART1_TXD(Y14)
UART1_RXD(V14)
MAX3232
19
Figure 6-19 UART Connection Block Diagram
TX_Data to Radio
TX_Data From Radio
T1IN
R1OUT
RX
OMAP5912
UART1_TXD(Y14)
UART1_RXD(V14)
T2IN
R2OUT
T1OUT
R1IN
T2OUT
R2IN
RX_Data to Radio
RX_Data From Radio
UART3.RX(K19)
UART3.TX(K18)
GPS-XP4
GPS_TX