Microchip Technology EVB-USB4715, Руководство пользователя

Страница: 18 / 33

EVB-USB4715 Evaluation Kit User’s Guide
DS50002679A-page 18

2017 Microchip Technology Inc.
3.1.6 Switches on EVB-USB4715
Table 3-4 describes the switches included on the EVB-USB4715.
3.1.7 Connector Descriptions for EVB-USB4715
Table 3-5 describes the connectors included on the PCB.
TABLE 3-4: SWITCH DESCRIPTIONS
REF. DES. LABEL DESCRIPTION
SW1 “RESET” Momentary push-button switch to assert RST_N.
SW2 “ON/OFF” Connects or disconnects the 12VDC supply
SW3 “OSC/I2S” Selects the clock source for the audio codec. The default
selection is 12S.
TABLE 3-5: USB4715 CONNECTOR DESCRIPTIONS
REF. DES. TYPE LABEL DESCRIPTION
J1 2x3 Header “SPI_DI/CFG
_BC_EN”
“SPI_CEn/CF
G_NON_RE
M”
Selects the between SPI memory capability
and BC/NON_REM capability.
For SPI, connect pins 2-3, 5-6.
For BC, connect pins 4-5.
For NON_REM, connect pins 1-2.
J2 2x6 Header “CFG_STRA
P1”
Selects the CONFIGx configuration mode for
EVB-USB4715if no valid SPI memory image
was detected.
CONFIG1: I2S
CONFIG2: UART, GPIO 4-6
CONFIG3: CONN_INDx
CONFIG4: (Reserved)
CONFIG5: UART, GPIO 4-7, SMBUS2
CONFIG6: I2S, GPIO 7
J3 2x1 Header “Ext.Reset” Connection for an external reset switch.
J4 USB2
Micro-AB
Connector
“PORT0” Upstream USB2 connection
J5 1x2 Header “VBUS_DET” Connects VBUS from host to VBUS_DET
J7 USB2 Type-A
Connector
“PORT3” Downstream Port 3 USB connection
J8 USB2 Type-A
Connector
“PORT4” Downstream Port 4 USB connection
J9 USB Type-C
Connector
“PORT1” Downstream Port 1 connection
J10 USB Type-C
Connector
“PORT2” Downstream Port 2 connection
J11 Barrel Jack “12VDC” 12 VDC supply connection (center pin posi-
tive)
J12 2-pin terminal
block
- Alternative 12 VDC supply connection. Pin 1
is positive.
J13 Audio Jack,
3.5mm
“AUX IN” Audio input for I
2
S codec
J14 2x2 Header “SMB2” Connection for SMBus2 (slave)
J15 1x2 Header “SMB2 PU” Connects the pull-up resistors for SMB2
J16 2x3 Header “SMB1/SMB2
”
Selects SMBus1 or SMBus2 to the EEPROM.
No connection if EEPROM is unused.