NXP Semiconductors
UM11734
Hardware user manual for FRDM665SPIEVB
Pin number
Connection
Description
15
NC-SDAT_RSP_TXD
connect R6 to interface SDAT_RSP_TXD of MC33665A
16
NC-SDAT_REQ_RXD connect R7 to interface SDAT_REQ_RXD of MC33665A
17
STB_N_OUT
inverted standby signal from MC33665A
18
STB_OUT
standby signal from MC33665A
19
RESET
reset signal for MC33665A
20
VDD5V
5 V supply line
Table 3. GPIO and interface - J1
...continued
Pin number
Connection
Description
1
SPI_RESP_CS
chip select for response SPI
2
GND
ground
3
SPI_RESP_CLK
clock interface for response SPI
4
GND
ground
5
SPI_RESP_SIN
response TXD of MC33665A
6
GND
ground
7
-
not connected
8
GND
ground
Table 4. Response SPI - J16
Pin number
Connection
Description
1
SPI_REQ_CS
chip select for request SPI
2
GND
ground
3
SPI_REQ_SCK
clock interface for request SPI
4
GND
ground
5
SPI_REQ_SIN
response TXD of MC33665A; interfaced to MC33665A by shorting jumper pin 1
and pin 2 in J14
6
GND
ground
7
SPI_REQ_SOUT
request RXD of MC33665A
8
GND
ground
Table 5. Request SPI - J7
Pin number
Connection
Description
1
EXT5V
external 5 V supply
2
VSS/GND
ground
Table 6. External 5 V - J11
UM11734
All information provided in this document is subject to legal disclaimers.
© 2022 NXP B.V. All rights reserved.
User manual
Rev. 1 — 25 July 2022
9 / 16
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
