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RSB-4210 User Manual 14

2.2.5 Pin Header for COM5, RS-232 (TX/RX/RTS/CTS) (CN5)

CN5 is a 4-wire (TX/RX/RTS/CTS) RS-232 port which provides connections between

serial devices (For example, GPS, GSM and Bluetooth devices etc.) or a communi-

cation network.

Figure 2.10 Pin Header for COM5, RS-232 (TX/RX/RTS/CTS)

A7 SysBus_A4 B7 SysBus_A5 C7 SysBus_A11 D7 SysBus_A10

A8 SysBus_A6 B8 SysBus_A7 C8 SysBus_A9 D8 SysBus_A8

A9 SysBus_A16 B9 SysBus_A17 C9 SysBus_A24 D9 N/C

A10 SysBus_A18 B10 SysBus_A19 C10 N/C D10 SysBus_OE

A11 SysBus_A20 B11 SysBus_A21 C11 SysBus_RW D11 GND

A12 SysBus_A22 B12 SysBus_A23 C12 N/C D12 N/C

A13 DIO_3V3 B13 N/C C13 SysBus_CS0 D13 SysBus_CS1

A14 SysBus_D0 B14 SysBus_D1 C14 SysBus_D15 D14 SysBus_D14

A15 SysBus_D2 B15 SysBus_D3 C15 SysBus_D13 D15 SysBus_D12

A16 SysBus_D4 B16 SysBus_D5 C16 SysBus_D11 D16 SysBus_D10

A17 SysBus_D6 B17 SysBus_D7 C17 SysBus_D9 D17 SysBus_D8

A18 N/C B18 N/C C18 N/C D18 N/C

A19 N/C B19 N/C C19 N/C D19 N/C

A20 N/C B20 N/C C20 N/C D20 N/C

A21 N/C B21 N/C C21 N/C D21 N/C

A22 N/C B22 N/C C22 SysBus_BCLK D22 GND

A23 N/C B23 N/C C23 N/C D23 GND

A24 N/C B24 N/C C24 SysBus_EB1 D24 DIO_3V3

A25 N/C B25 N/C C25 N/C D25 DIO_3V3

A26 SysBus_nEB0 B26 N/C C26 N/C D26 N/C

A27 N/C B27 SysBus_LBA C27 5 V_EXT D27 5V_EXT

A28 SysBus_WP B28 N/C C28 SysBus_Wait D28 N/C

A29 N/C B29 N/C C29 N/C D29 N/C

A30 SysBus_Wait B30 N/C C30 GND D30 N/C

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