M.2CANFD
M.2 Interface CAN (FD) Card
©2022 Guangzhou ZLG Electronics Co., Ltd.
8
User Manual
2.5
M.2 Goldfinger Definition
Figure 2.3 M.2 goldfinger
The definition of M.2 interface is shown in Table 2.3. The 30th, 32nd, 34th, and 36th
pins are the second function pins of the CAN.
Table 2.3 M.2 interface definition
Signal Name
Pin No.
Description
nWAKE
54
nWAKE signal/default pull-up
nRESET
50
nRESET signal/not used
TD0_REV
30
CAN0 TXD second function IO
RD0_REV
32
CAN0 RXD second function IO
TD1_REV
34
CAN1 TXD second function IO
RD1_REV
36
CAN1 RXD second function IO
REFCLK_N/P
53,55
PCIE reference clock pair
PCIE_TX_N/P
41,43
PCIE send pair
PCIE_RX_N/P
47,49
PCIE receiving pair
3.3V
2,4,70,72,74
Power supply
GND
3,27,33,39,45,51,57,71,73
Ground
2.6
Signal Indicators
The M.2CANFD interface card has 1 dual-color SYS indicator, 1 dual-color CAN0
indicator, and 1 dual-color CAN1 indicator, which indicate the running status of the device.
