User's Manual

Confidential

External QSPI flash to CU277B

AW-CU277BB

USB B-type

5V Input

FTDI USB to UART/JTAG with CU277B

(COM Port 1 for CU277B’s JTAG, COM Port 2 for CU277B’s

UART0)

External 32.768KHz to

CU277B

EVB Power Supply Option:

1. USB B-type 5V Input

2. Power Jack 5V Input

(If the USB B-type driving force

shortage)

LDO 5V to 3.3V

CU277B Reset

CU277B Wake Up

JP11 for CU277B boots

Option

Power Jack 5V Input

Relative Hardware I3