Altera Cyclone V SoC Development Board - Manual (Page 42)

2–34 Chapter 2: Board Components
Components and Interfaces
Cyclone V SoC Development Board November 2013 Altera Corporation
Reference Manual
RS-232 UART (HPS)
The development board supports a UART interface that connects to a mini-USB
connector (J8) using a FT232RQ-REEL USB-to-UART bridge. The maximum
supported rate for this interface is 1 Mbps. Board reference D14 and D15 are the
UART LEDs that illuminate to indicate TX and RX activity.
Table 2–32 lists the RS-232 UART pin assignments, signal names, and functions. The
signal names and types are relative to the Cyclone V SoC in terms of I/O setting and
direction.
CAN Bus (HPS)
The development board supports one controller area network (CAN) bus through a
DB-9 male connector. The CAN bus is multi-master broadcast serial bus standard for
connecting electronic control units (ECUs). The maximum supported rate for this
interface is 1 Mbps. This interface uses a dedicated CAN controller inside the HPS. A
PHY device (U50) is connected in between the HPS and the DB-9 male connector.
143 HSMA_TX_D_P15 B13 LVDS or 2.5-V LVDS TX bit 15 or CMOS bit 68
144 HSMA_RX_D_P15 C13 LVDS or 2.5-V LVDS RX bit 15 or CMOS bit 69
145 HSMA_TX_D_N15 A13 LVDS or 2.5-V LVDS TX bit 15n or CMOS bit 70
146 HSMA_RX_D_N15 B12 LVDS or 2.5-V LVDS RX bit 15n or CMOS bit 71
149 HSMA_TX_D_P16 C12 LVDS or 2.5-V LVDS TX bit 16 or CMOS bit 72
150 HSMA_RX_D_P16 F15 LVDS or 2.5-V LVDS RX bit 16 or CMOS bit 73
151 HSMA_TX_D_N16 B11 LVDS or 2.5-V LVDS TX bit 16n or CMOS bit 74
152 HSMA_RX_D_N16 F14 LVDS or 2.5-V LVDS RX bit 16n or CMOS bit 75
155 HSMA_CLK_OUT_P2 E7 LVDS or 2.5-V LVDS or CMOS clock out 2 or CMOS bit 76
156 HSMA_CLK_IN_P2 H15 LVDS or 2.5-V LVDS or CMOS clock in 2 or CMOS bit 77
157 HSMA_CLK_OUT_N2 E6 LVDS or 2.5-V LVDS or CMOS clock out 2 or CMOS bit 78
158 HSMA_CLK_IN_N2 G15 LVDS or 2.5-V LVDS or CMOS clock in 2 or CMOS bit 79
160 HSMA_PRSNTN AD12 2.5-V CMOS HSMC port A presence detect
Table 2–23. HSMC Interface Pin Assignments, Schematic Signal Names, and Functions (Part 4 of 4)
Board
Reference (J12)
Schematic Signal
Name
Cyclone V SoC
Pin Number
I/O Standard Description
Table 2–24. RS-232 UART Schematic Signal Names and Functions
Board
Reference (U17)
Schematic
Signal Name
Cyclone V SoC
Pin Number
I/O Standard Description
2 UART_TX D24 3.3-V Transmit data
30 UART_RX E24 3.3-V Receive data
18 RESET_HPS_UART_N — 3.3-V Reset
11 POWER_EN — 3.3-V Power