1

2

3

4

5

6

1

2

3

4

5

6

A

B

C

D

A

B

C

D

Date:

KiCad E.D.A. kicad (5.99.0-3207-g147540b3b)

Rev: 1

Size: A4

Id: 5/7

Title: Compute Module 4 IO Board - GPIO - Ethernet

File: CM4_GPIO.kicad_sch

Sheet: /CM4_GPIO ( Ethernet, GPIO, SDCARD)/

(c) Raspberry Pi Trading 2020

www.raspberrypi.org

GND

1

2

3

4

J9

THD-02-R

1000pF

C1

C2

C3

C4

C5

C6

C7

C8

GREEN

YELLOW

TRD0+

1

TRD3-

10

VC1

11

VC2

12

VC3

13

VC4

14

LEDY_A

15

LEDY_K

16

LEDG_A

17

LEDG_K

18

SHIELD

19

TRD0-

2

SHIELD

20

TRD1+

3

CT

4

CT

5

TRD1-

6

TRD2+

7

TRD2-

8

TRD3+

9

U3

MagJack-A70-112-331N126

R2

470R

TP3

TestPoint

R3

470R

C1

100n

GND

D1

LED Red

R17

nf

R18

nf

R4

nf

TP5

TestPoint

R5

0R

GND

GND

D2

LED Green

1

2

3

J3

Conn_01x03

1

2

3

J1

Conn_01x03

1

10

11

12

13

14

2

3

4

5

6

7

8

9

J2

Conn_02x07_Odd_Even

GND

OUT

1

GND

2

nFLG

3

EN

4

IN

5

U18

RT9742GGJ5

R29

12K 1%

DAT2

1

DET_A

10

SHIELD

11

DAT3/CD

2

CMD

3

VDD

4

CLK

5

VSS

6

DAT0

7

DAT1

8

DET_B

9

J7

Micro_SD_Card_Det

2

4

U5

74LVC1G07SE-7

GND

GND

GND

R10

1k

C5

10u

1

10

11

12

13

14

15

16

17

18

19

2

20

21

22

23

24

25

26

27

28

29

3

30

31

32

33

34

35

36

37

38

39

4

40

5

6

7

8

9

J8

THD-20-R

D1+

1

D1-

2

D2+

4

D2-

5

U2

TPD4EUSB30

R1

1k

GND

GND

GND

D1+

1

D1-

2

D2+

4

D2-

5

U1

TPD4EUSB30

GND

2

4

U9

74LVC1G07SE-7

GND

GPIO

600mA Max

600mA Max

NB SD signals are only available

on modules without eMMC

GND

1

Ethernet_Pair0_N

10

nEXTRST

100

Ethernet_Pair2_P

11

Ethernet_Pair0_P

12

GND

13

GND

14

Ethernet_nLED3(3.3v)

15

Ethernet_SYNC_IN(1.8v)

16

Ethernet_nLED2(3.3v)

17

Ethernet_SYNC_OUT(1.8v)

18

Ethernet_nLED1(3.3v)

19

GND

2

EEPROM_nWP

20

PI_nLED_Activity

21

GND

22

GND

23

GPIO26

24

GPIO21

25

GPIO19

26

GPIO20

27

GPIO13

28

GPIO16

29

Ethernet_Pair3_P

3

GPIO6

30

GPIO12

31

GND

32

GND

33

GPIO5

34

ID_SC

35

ID_SD

36

GPIO7

37

GPIO11

38

GPIO8

39

Ethernet_Pair1_P

4

GPIO9

40

GPIO25

41

GND

42

GND

43

GPIO10

44

GPIO24

45

GPIO22

46

GPIO23

47

GPIO27

48

GPIO18

49

Ethernet_Pair3_N

5

GPIO17

50

GPIO15

51

GND

52

GND

53

GPIO4

54

GPIO14

55

GPIO3

56

SD_CLK

57

GPIO2

58

GND

59

Ethernet_Pair1_N

6

GND

60

SD_DAT3

61

SD_CMD

62

SD_DAT0

63

SD_DAT5

64

GND

65

GND

66

SD_DAT1

67

SD_DAT4

68

SD_DAT2

69

GND

7

SD_DAT7

70

GND

71

SD_DAT6

72

SD_VDD_Override

73

GND

74

SD_PWR_ON

75

Reserved

76

+5v_(Input)

77

GPIO_VREF(1.8v/3.3v_Input)

78

+5v_(Input)

79

GND

8

SCL0

80

+5v_(Input)

81

SDA0

82

+5v_(Input)

83

+3.3v_(Output)

84

+5v_(Input)

85

+3.3v_(Output)

86

+5v_(Input)

87

+1.8v_(Output)

88

WL_nDisable

89

Ethernet_Pair2_N

9

+1.8v_(Output)

90

BT_nDisable

91

RUN_PG

92

nRPIBOOT

93

AnalogIP1

94

nPI_LED_PWR

95

AnalogIP0

96

Camera_GPIO

97

GND

98

Global_EN

99

Module1A

ComputeModule4

GND

TV_OUT

ID_SC

GPIO_VREF

GLOBAL_EN

CAM_GPIO

+5v

SCL0

ID_SD

nEXTRST

SDA0

+3.3v

RUN_PG

GLOBAL_EN

GPIO23

TRD3_P

SD_DAT3

TRD3_N

GPIO14

TRD1_N

SD_CMD

TRD1_P

SD_CLK

+3.3v

GPIO25

GPIO11

GPIO7

ID_SC

+3.3v

nPWR_LED

+1.8v

SD_DAT1

SD_DAT0

SD_DAT2

SD_PWR

SD_DET

SD_PWR_ON

GPIO24

SD_PWR

GPIO18

+3.3v

GPIO15

TR3_TAP

TR0_TAP

TRD1_P

TRD0_N

TRD0_P

TRD3_N

TRD3_P

TRD2_N

TRD2_P

TRD1_N

GPIO10

TR2_TAP

TR1_TAP

ETH_LEDY

TRD0_P

TRD0_N

TR1_TAP

TR0_TAP

GPIO_VREF

+3.3v

+3.3v

TRD2_P

TRD2_N

TR3_TAP

TR2_TAP

+3.3v

+3.3v

+3.3v

+5v

ETH_LEDG

GPIO2

GPIO3

GPIO4

GPIO13

GPIO9

GPIO17

GPIO27

GPIO22

WL_nDis

EEPROM_nWP

SYNC_OUT

GPIO26

SYNC_IN

TRD0_P

GPIO15

GPIO14

SD_CLK

SD_DAT3

SD_DAT0

SD_PWR_ON

+5v

GPIO6

GPIO18

GPIO23

GPIO24

GPIO25

GND

GPIO8

GPIO7

GPIO12

ID_SC

GPIO16

GPIO20

TV_OUT

AIN1

GPIO21

TRD3_N

TRD3_P

GPIO_VREF

ETH_LEDY

ETH_LEDG

TRD2_P

TRD2_N

+5v

RUN_PG

GPIO11

GPIO9

GPIO26

AIN0

RUN_PG

ID_SD

GPIO5

TRD0_N

TRD1_N

TRD1_P

GPIO13

SD_DAT1

SD_DAT2

GPIO19

GPIO3

GPIO17

nRPIBOOT

GLOBAL_EN

GPIO8

nPWR_LED

BT_nDis

nRPIBOOT

GPIO4

GPIO2

SYNC_IN

+3.3v

+1.8v

GLOBAL_EN

GPIO27

GPIO22

SD_DET

GPIO10

GPIO5

SYNC_OUT

ID_SD

GPIO19

GND

GPIO6

GND

SD_CMD

EEPROM_nWP

GND

GND

GPIO21

AIN0

GPIO20

GPIO16

GPIO12

AIN1

Ethernet POE

Protection

40Way GPIO Header

PWR LED

GPIO Voltage select

POE Header

CM4Lite SDCARD I/F

If compute modules is awake RUN_PG will be high so the button doesn't do anything

If the compute module is asleep then RUN_PG will be at 0v and so pull global enable low

A button bwteen pins 13-14 can be used to wake up compute module from power down

Not Fitted headers

EEPROM write protect = Jumper Pins 3-4

Activity LED

Force RPIBOOT = Jumper Pins 1-2

Ethernet

Figure 5. CM4 GPIO

1

2

3

4

5

6

1

2

3

4

5

6

A

B

C

D

A

B

C

D

Date:

KiCad E.D.A. kicad (5.99.0-3207-g147540b3b)

Rev: 1

Size: A4

Id: 6/7

Title: Compute Module 4 IO Board - PCIe

File: PCIe-routing.kicad_sch

Sheet: /PCIe-connector/

(c) Raspberry Pi Trading 2020

www.raspberrypi.org

C32

10u

nPRSNT1

A1

+3.3V

A10

nPERST

A11

GND

A12

REFCLK+

A13

REFCLK-

A14

GND

A15

PERP0

A16

PERN0

A17

GND

A18

+12V

A2

+12V

A3

GND

A4

TCK

A5

TDI

A6

TD0

A7

TMS

A8

+3.3V

A9

+12v

B1

+3.3vAUX

B10

nWAKE

B11

nCLKREQ

B12

GND

B13

PETP0

B14

PETN0

B15

GND

B16

nPRSNT2

B17

GND

B18

+12v

B2

+12v

B3

GND

B4

SMCLK

B5

SMDAT

B6

GND

B7

+3.3v

B8

nTRST

B9

J12

10018783-11200TLF

GND

C26

10u 35v

C27

10u 35v

C25

10u 35v

C45

100uF

C33

10u

R23

12K 1%

C65

nf

R30

15K 1%

C30

10u

C29

100n

GND

R22

10R

C28

10u 35v

C62

100n

C31

10u

1

2

L3

SRN6045TA-3R3Y

GND

R24

47K 1%

C64

1.2nF

GND

GND

GND

BST

1

VIN

2

EN

3

SS

4

FB

5

COMP

6

GND

7

SW

8

U15

AP64501SP-13

TP1

TestPoint

C63

nf

C44

10u 35v

C43

10u 35v

PCIE_CLK_N

PCIE_CLK_P

PCIE_nRST

PCIE_CLK_nREQ

PCIE_TX_N

+12v

PCIE_RX_N

PCIE_RX_P

+12v

PCIE_TX_P

+3.3v

+12v

+3.3v

+3.3v

+12v

NB PCIe x1 takes a maximum of +12v @0.6A or +3.3v@3A , 10Watts combined

PCIe x1 connector

3.3v @ 3.3A PSU for PCIe Only ( 12v Input )

TX and RX have PN swaps to improve routing

Figure 6. PCIe

Connector

Raspberry Pi Compute Module 4 IO Board

Chapter 4. Circuit Diagram

10