Laird BL654 - Page 25

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25
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Plated Through Holes or Header Connector
BL654 Module Signals Exposed
J4
6
J46 is NOPOP but is compatible to same
connector on Nordic development board and
brings out same signals.
SIO_41 on BL654 is SPI_CLK (as an
alternative function) is disconnected from
J46 on devboard by open solderbridge SB23.
SIO_41 on BL654 is directly connected to U2
(Eeprom) pin6 on devboard.
J1
Serial Port plated holes for access:
J3
5
Jumper in J35 selects between BL654 UART
routed to FTDI Atmel MCU:
No Jumper on J35 (default)
Routes SIO_05 (RTS) to FTDI CTS
Routes SIO_06 (TX) to FTDI RX
Routes SIO_07 (CTS) to FTDI RTS
Routes SIO_08 (RX) to FTDI TX
Jumper on J35 (Route to Atmel)
Routes SIO_05 (RTS) to IMCU_CTS
Routes SIO_06 (TX) to IMCU_RxD
Routes SIO_07 (CTS) to IMCU_RTS
Routes SIO_08 (RX) to IMCU_TxD
VDD_VSRC_nRF
TRACECLK
TRACEDATA0
TRACEDATA1
TRACEDATA2
TRACEDATA3
SB23
NOPOP (Solderbridge_Open)
1
1
2
2
GND
SWDCLK_BLE
SIO_32_SWO_BLE
SWDIO_BLE
SIO_11
nRESET_BLE
SIO_07
SIO_12
J46
NOPOP (PIN HEADER,1.27mm 2X10P)
1 2
3 4
5 6
7 8
9 10
11
13
15
17
19
12
14
16
18
20
Eeprom_SCK_SIO_41
SIO_32_SWO_BLE
SIO_06
R1
NOPOP (0R)
Module pin BL654 UART Data Flow
SIO_06 Module_TX Output
SIO_08 Module_RX Input
SIO_05 Module_RTS Output
SIO_07 Module_CTS Input
SIO_07
SIO_08
VDD_VSRC_nRF
SIO_05
FTDI (USB to TTL 232 Cable)
GND
USB_CTS
VCC
USB_TX
USB_RX
USB_RTS
GND
RTS
VCC
RX
TX
CTS
J1
NOPOP (PIN HEADER,2.54mm 1X6P)
1
1
2
2
3
3
4
4
5
5
6
6
GND
BL654 UART J35
routed to FTDI: No Jumper in J35 (default).
routed to Atmel: Fit Jumper in J35.
IMCU_CTS
IMCU_RxD
C8
0.1uF,16V
GND
IMCU_RTS
IMCU_TxD
USB_CTS
Module_CTS
VDD_VSRC_nRF
R7
10K
R6 0R
R9 0R
R12 0R
R21 0R
USB_RX
R19
10K
PIN HEADER,2.54mm 1X2P
J35
1
1
2
2
USB_DETECT Pins connect
High 1A-->1B1,
2A-->2B1,
3A-->3B1,
4A-->4B1
Module_RX
GND
SIO_08
VDD_VSRC_nRF
SIO_05
SIO_06
SIO_07
VDD_VSRC_nRF
USB_TX
USB_RTS
VDD_VSRC_nRF
U15
Dual DPDT,1.65V~4.45V
1B0
1
1B1
15
2B0
5
2B1
3
1A
16
2A
4
1S
2
3B0
9
3B1
7
4B0
13
4B1
11
3A
8
4A
12
2S
10
GND
6
VCC
14
Module_RTS
Module_TX
R2
10K
GND
R3
10K
R10
10K
R11
10K