Renesas Starter Kit+, Руководство пользователя

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Renesas Starter Kit+ for RX72N 5. User Circuitry
R20UT4443EG0100 Rev. 1.00 Page 23 of 57
Nov 30, 19
5.10 Universal Serial Bus (USB)
This CPU board is fitted with a USB Host socket (type A) and a Function socket (type Mini B). USB module
USB0 is connected to the Host and Function socket, and can operate as either a Host or Function device. The
connection for the USB0 module is shown in Table 5-12 below.
Table 5-12: USB0 Module Connections
USB Signal Function
MCU
Port Pin
USB0-DP D+ I/O pin of the USB on-chip transceiver USB0_DP R6
USB0-DM D– I/O pin of the USB on-chip transceiver USB0_DM R5
USB0-VBUS USB cable connection monitor pin
P16 R3
USB0-VBUSEN *1 VBUS (5V) supply enable signal for external power supply chip
USB0-OVRCURA *1 External overcurrent detection signals A P14 P4
USB0-OVRCURB External overcurrent detection signals B P22 N1
*1
: This connection is a not available in the default RSK+ configuration - refer to §6 for the required
modifications.
5.11 External Bus
The RX72N features an external data bus, which is connected to various devices on the CPU board. Details of
the devices connected to the external data bus are listed in Table 5-13 below. Further details of the devices
connected to the external bus can be found in the board schematics.
Table 5-13: External Bus Address Space
Chip Select Device Name Device Description Address Space
CS0 - Unused FF000000h – FFFFFFFFh (16Mbyte)
SDCS(SDRAM-SDCSn) U12 128Mbit SDRAM 08000000h – 0FFFFFFFh (128Mbyte)
SDCS(JA3-CSb) *1 JA3 Application Header 08000000h – 0FFFFFFFh (128Mbyte)
CS1 – CS2 - Unused 06000000h – 07FFFFFFh (2 x 16Mbyte)
CS3(JA3-CSa) JA3 Application Header 05000000h – 05FFFFFFh (16Mbyte)
CS4 – CS5 - Unused 03000000h – 04FFFFFFh (2 x 16Mbyte)
CS6(JA3-CSc) JA3 Application Header 02000000h – 02FFFFFFh (16Mbyte)
CS7 - Unused 01000000h – 01FFFFFFh (16Mbyte)
*1
: This connection is a not available in the default RSK+ configuration - refer to §6 for the required
modifications.