7. SP7021 Reference Circuit

0.9V Power Tree

There is a feedback loop in DC to DC 0.9 circuit, and the 0.9V output is the power source of the C chip.

Pin Name

Pin Number

Type

Description

Pin Name

Pin Number

Type

Description

VDD09_A

33, 36, 57

Power

Power for C chip

DCDC09_FB

58

Analog Input

Feedback Voltage

DCDC09_VI_VDD33

59

Analog Input

3.3V Power Input

DCDC09_VO

60

Analog Output

0.9V Power Output

Notice:

(1) In typical cases, the internal DC-DC 0.9V efficiency is 73.45~88.16%

Recommended Bead Electrical characteristics:

Part Number: ACMS160808A600

Impedance@100MHz, ohm+/-25%: 60

DC Resistance, ohm(max): 0.04

Rated Current mA(max): 3000

 

1.2V Power Tree

1.2V is the power source for the CPU chip and Peripheral chip.

Pin Name

Pin Number

Type

Description

Pin Name

Pin Number

Type

Description

VDD12_A

35, 56

Power

Power for C chip

CVDD12

23, 46, 79, 108, 154

Power

Power for P chip

VDD12_STH

34

Power

Power for CPIO South side

VDD12_EST

55

Power

Power for CPIO east side

HDMITX_PLL_AVDD12

136

Power

Power for HDMI

PLL_CVDD12

156

Power

Power for PLL

DCDC12_VO

171

Analog Output

1.2V Power Output

DCDC12_VI_VDD33

172

Analog Input

3.3V Power Input

Notice:

(1) 1.2V external power is needed if 1.2V consumes current more than 1200mA

(2) In typical cases, the internal DC-DC 1.2V efficiency is 76.68~84.87%

Recommended Bead Electrical characteristics:

Part Number: ACMS160808A600

Impedance@100MHz, ohm+/-25%: 60

DC Resistance, ohm(max): 0.04

Rated Current mA(max): 3000

 

1.5V Power Tree

1.5V is the power of built-in DDR and DDR-PHY

Pin Name

Pin Number

Type

Description

Pin Name

Pin Number

Type

Description

DDR3-K-VDDQ

157, 166

Power

DDR3 KGD IO power

DDR3-PHY-VDDQ

158, 160, 162

Power

DDR3-PHY IO power

DDR3-PHY-1.2CORE

159, 161

Power

DDR3-PHY core power

DDR3-PHY-3.3PLL

163

Power

DDR3-PHY PLL power

DDR3-PHY-VREF

164

Analog Input

DDR3-PHY reference voltage

DDR3-PHY-PZQ

165

Analog Output

DDR3-PHY external reference resistor

DCDC15_VI_VDD33

167

Analog Input

3.3V Power Input

DCDC15_VO

168

Analog Output

1.5V Power Output

Notice:

(1) In typical cases, the internal DC-DC 1.5V efficiency is 80.43~90.38%

Recommended Bead Electrical characteristics:

Part Number: ACMS160808A600

Impedance@100MHz, ohm+/-25%: 60

DC Resistance, ohm(max): 0.04

Rated Current mA(max): 3000

 

MIPI-CSI

There is one MIPI-CSI Rx interface in SP7021. Two used application circuits are shown as below. One is 4 lane OV9282 camera module, and the other is 1 lane GC0310 camera module.

https://www.ovt.com/sensors/OV9282

http://www.gcoreinc.com/product/showproduct.php?lang=cn&id=32

Note : MIPI layout impedance 100 ohm

Pin Name

Pin Number

Type

Description

Remark

Pin Name

Pin Number

Type

Description

Remark

MIPI_D3N

143

Analog Input

MIPI Lane3, Data-

 

MIPI_D3P

144

Analog Input

MIPI Lane3, Data+

 

MIPI_D1N

145

Analog Input

MIPI Lane1 Data-

 

MIPI_D1P

146

Analog Input

MIPI Lane1, Data+

 

MIPI_SN

147

Analog Input

MIPI Clock-

 

MIPI_SP

148

Analog Input

MIPI Clock+

 

MIPI_D0N

149

Analog Input

MIPI Lane0, Data-

 

MIPI_D0P

150

Analog Input

MIPI Lane0, Data+

 

MIPI_D2N

151

Analog Input

MIPI Lane2, Data-

 

MIPI_D2P

152

Analog Input

MIPI Lane2, Data+

 

MIPIAVDD

153

Power

MIPI 1.2V power

 

GPIO_P0_0

174

Digital Output

MIPI power down control siganl

any GPIO

GPIO_P8_5

85

Digital I/O

MIPI I2C control data (MPI_SDA)

I2C in PinMux

GPIO_P8_6

86

Digital I/O

MPI I2C control clock (MIPI_SCL)

I2C in PinMux

 

 

HDMI TX

Pin 134 ~ 142 are the HDMI signal output, and there are three control pins need to be assigned for

Note : Differential signals (TXCP/N, TXD0P/N, TXD1P/N and TXD2P/N): 50ohm single_ended, and 100ohm differential

Pin Name

Pin Number

Type

Description

Remark

Pin Name

Pin Number

Type

Description

Remark

HDMITX_CN

134

Analog Output

 

 

HDMITX_CP

135

Analog Output

 

 

HDMI_AVDD12

136

Power

HDMI TX PLL Power

 

HDMITX_DN0

137

Analog Output

 

 

HDMITX_DP0

138

Analog Output

 

 

HDMITX_DN1

139

Analog Output

 

 

HDMITX_DP1

140

Analog Output

 

 

HDMITX_DN2

141

Analog Output

 

 

HDMITX_DP2

142

Analog Output

 

 

DDC_SDA

112, 76, 85

Digital Output

Display Data Chanel Serial Data

dedicated pin

DDC_SCL

113, 77, 86

Digital Output

Display Data Chanel Serial Clock

dedicated pin

HDMI_HPD

114, (any)

Digital Input

Hot Plug Detection

GPIO

 

 

 

USB

There have two USB ports in SP7021. They all support OTG mode. Please check below table with signals list.

Pin Name

Pin Number

Type

Description

Pin Name

Pin Number

Type

Description

USB0_VBUS

125

Power

USB0 bus power

USB0_ID

126

Digital Input

USB0_ID signal

USB0_DM

127

Analog I/O

USB0_DM signal

USB0_DP

128

Analog I/O

USB0_DP signal

USB1_DP

130

Analog I/O

USB1_DP signal

USB1_DM

131

Analog I/O

USB1_DM signal

USB1_ID

132

Digital Input

USB1_ID signal

USB1_VBUS

133

Power

USB1 bus power

 

X'tal

There have two X’tal source in SP7021. One is 27MHz at pin 110 and 111, the other one is 32KHz at pin123 and 124. Please check below table with signals list.

Pin Name

Pin Number

Type

Description

Pin Name

Pin Number

Type

Description

XTAL_IN

110

Analog Input

XTAL_IN signal

XTAL_OUT

111

Analog Output

XTAL_OUT signal

XTAL32K_IN

123

Analog Input

XTAL32K_IN signal

XTAL32K_OUT

124

Analog Output

XTAL32K_OUT signal

 

Best Crystal Compatiblity:

Crystal ESR < 100W、CLOAD = 20pF,。

recommended oscillator circuit :RFB = 4.7KW、CIN = COUT = 18pF。

 

For reducing EMI:

Crystal ESR < 100W、CLOAD = 20pF, DO NOT choose triple frequency crystal。

recommended oscillator circuit :RFB = 1MW、CIN = COUT = 10pF。

 

JTAG/SWD

JTAG function pins locate at pin104, 105, 106, 107, 112 and 113. SWD function pins locate at pin102 and 103. Please check below table with signals list.

Pin Name

Pin Number

Type

Description

Pin Name

Pin Number

Type

Description

SWD_CLK

102

Digital Output

SWD clock signal

SWD_DATA

103

Digital I/O

SWD data signal

JTAG_TDO

104

Digital Output

JTAG_TDO signal

JTAG_RTCK

105

Digital Output

JTAG_RTCK signal

JTAG_TCLK

106

Digital Output

JTAG_TCLK signal

JTAG_TMS

107

Digital Output

JTAG_TMS signal

JTAG_TDI

112

Digital Input

JTAG_TDI signal

JTAG_TRST

113

Digital Output

JTAG_TRST signal

 

UART

UART0 function pins locate at pin98 and 99. Please check below table with signals list.

Pin Name

Pin Number

Type

Description

Pin Name

Pin Number

Type

Description

UA0_TX

98

Digital Output

UART0 transmitter signal

UA0_RX

99

Digital Input

UART0 receiver signal

UART1~4 function pins can be output from any GPIOMUX pins by set correct register value. Below figure shows the example of UART2 reference circuit. 

Pin Name

Pin Number

Type

Description

Pin Name

Pin Number

Type

Description

UA2_TX

15

Digital Output

UART2 transmitter signal

UA2_RX

16

Digital Input

UART2 receiver signal

UA2_RTS

17

Digital Output

UART2 RTS signal

UA2_CTS

18

Digital Output

UART2 CTS signal

 

eMMC

EMMC function pins locate at pin88~97. Please check below table with signals list. The application circuit eMMC component use Micron MTFC4GACAJCN-4M IT.

Pin Name

Pin Number

Type

Description

Pin Name

Pin Number

Type

Description

EMMC_CMD

88

Digital Output

EMMC command signal

EMMC_D5

89

Digital I/O

EMMC data signal

EMMC_D3

90

Digital I/O

EMMC data signal

EMMC_D4

91

Digital I/O

EMMC data signal

EMMC_D0

92

Digital I/O

EMMC data signal

EMMC_D1

93

Digital I/O

EMMC data signal

EMMC_CLK

94

Digital Output

EMMC clock signal

EMMC_D2

95

Digital I/O

EMMC data signal

EMMC_D7

96

Digital I/O

EMMC data signal

EMMC_D6

97

Digital I/O

EMMC data signal

 

SD card

SD card function pins can be output from multiplex pins by set register Group1.1(sft cfg 1) bit6 to 1. Please check below table with signals list.

Pin Name

Pin Number

Type

Description

Pin Name

Pin Number

Type

Description

SD_D1

81

Digital I/O

SDIO data signal

SD_D0

82

Digital I/O

SDIO data signal

SD_CLK

83

Digital Output

SDIO clock signal

SD_CMD

84

Digital Output

SDIO command signal

SD_D3

85

Digital I/O

SDIO data signal

SD_D2

86

Digital I/O

SDIO data signal

SD_SEN

87

Digital Output

SDIO enable signal

 

Ethernet

Ethernet function pins can be output from any GPIOMUX pin by set correct register value. For example , assign Pin50(GPIO_P5_3) to MAC_SMI_MDIO , Pin51(GPIO_P5_4) to MAC_SMI_MDC , Pin52(GPIO_P5_5) to LED_ON , Pin53(GPIO_P5_6) to RMII_RXER , Pin54(GPIO_P5_7) to RMII_CRSDV , Pin62(GPIO_P6_0) to RMII_RXD0 , Pin63(GPIO_P6_1) to RMII_RXD1 , Pin64(GPIO_P6_2) to RMII_CLKOUT , Pin65(GPIO_P6_3) to RMII_TXD0 , Pin66(GPIO_P6_4) to RMII_TXD1 , Pin67(GPIO_P6_5) to RMII_TXEN , Pin68(GPIO_P6_6) to LED_FLASH.

Pin Name

Pin Number

Type

Description

Pin Name

Pin Number

Type

Description

MAC_SMI_MDIO

50

Digital I/O

MAC_SMI_MDIO signal

MAC_SMI_MDC

51

Digital Output

MAC_SMI_MDC signal

LED_ON

52

Digital Output

LED_ON signal

RMII_RXER

53

Digital Input

RMII_RXER signal

RMII_CRSDV

54

Digital Output

RMII_CRSDV signal

RMII_RXD0

62

Digital Input

RMII_RXD0 signal

RMII_RXD1

63

Digital Input

RMII_RXD1 signal

RMII_CLKOUT

64

Digital Output

RMII_CLKOUT signal

RMII_TXD0

65

Digital Output

RMII_TXD0 signal

RMII_TXD1

66

Digital Output

RMII_TXD1 signal

RMII_TXEN

67

Digital Output

RMII_TXEN signal

LED_FLASH

68

Digital Output

LED_FLASH signal

 

I2C

I2CM function pins can be output from any GPIOMUX pin by set correct register value. For example , assign Pin25(GPIO_P3_0) to I2CM0_CK , Pin26(GPIO_P3_1) to I2CM0_DAT.

Pin Name

Pin Number

Type

Description

Pin Name

Pin Number

Type

Description

I2CM0_CK

25

Digital Output

I2CM clock signal

I2CM0_DAT

26

Digital I/O

I2CM data signal

 

SPI

SPI-COMBO function pins can be output from any GPIOMUX pin by set correct register value. For example , assign Pin13(GPIO_P1_6) to SPIM0_INT , Pin14(GPIO_P1_7) to SPIM0_CLK , Pin15(GPIO_P2_0) to SPIM0_EN , Pin16(GPIO_P2_1) to SPIM0_DO , Pin17(GPIO_P2_2) to SPIM0_DI.

Pin Name

Pin Number

Type

Description

Pin Name

Pin Number

Type

Description

SPIM0_INT

13

Digital Output

SPI interrupt signal

SPIM0_CLK

14

Digital Output

SPI clock signal

SPIM0_EN

15

Digital Output

SPI enable signal

SPIM0_DO

16

Digital Output

SPI master data output

SPIM0_DI

17

Digital Input

SPI master receive data from slave

 

FPGA

FPGA function pins can be output from GPIOMUX pin by set correct register value. Please check below table with signals list.

Pin Name

Pin Number

Type

Description

Pin Name

Pin Number

Type

Description

FBIO_PAD_0

176

Digital I/O

FBIO_PAD signal

FBIO_PAD_1

1

Digital I/O

FBIO_PAD signal

FBIO_PAD_2

2

Digital I/O

FBIO_PAD signal

FBIO_PAD_3

3

Digital I/O

FBIO_PAD signal

FBIO_PAD_4

5

Digital I/O

FBIO_PAD signal

FBIO_PAD_5

6

Digital I/O

FBIO_PAD signal

FBIO_PAD_6

7

Digital I/O

FBIO_PAD signal

FBIO_PAD_7

8

Digital I/O

FBIO_PAD signal

FBIO_PAD_8

9

Digital I/O

FBIO_PAD signal

FBIO_PAD_9

10

Digital I/O

FBIO_PAD signal

FBIO_PAD_10

11

Digital I/O

FBIO_PAD signal

FBIO_PAD_11

12

Digital I/O

FBIO_PAD signal

FBIO_PAD_12

13

Digital I/O

FBIO_PAD signal

FBIO_PAD_13

14

Digital I/O

FBIO_PAD signal

FBIO_PAD_14

15

Digital I/O

FBIO_PAD signal

FBIO_PAD_15

16

Digital I/O

FBIO_PAD signal

FBIO_PAD_16

17

Digital I/O

FBIO_PAD signal

FBIO_TCLK

18

Digital Output

FBIO_PAD signal

FBIO_RCLK

19

Digital Output

FBIO_PAD signal

FBIO_PAD_17

20

Digital I/O

FBIO_PAD signal

FBIO_PAD_18

21

Digital I/O

FBIO_PAD signal

FBIO_PAD_19

22

Digital I/O

FBIO_PAD signal

FBIO_PAD_20

25

Digital I/O

FBIO_PAD signal

FBIO_PAD_21

26

Digital I/O

FBIO_PAD signal

FBIO_PAD_22

27

Digital I/O

FBIO_PAD signal

FBIO_PAD_23

28

Digital I/O

FBIO_PAD signal

FBIO_PAD_24

29

Digital I/O

FBIO_PAD signal

FBIO_PAD_25

30

Digital I/O

FBIO_PAD signal

FBIO_PAD_26

31

Digital I/O

FBIO_PAD signal

FBIO_PAD_27

32

Digital I/O

FBIO_PAD signal

FBIO_PAD_28

37

Digital I/O

FBIO_PAD signal

FBIO_PAD_29

38

Digital I/O

FBIO_PAD signal

FBIO_PAD_30

39

Digital I/O

FBIO_PAD signal

FBIO_PAD_31

40

Digital I/O

FBIO_PAD signal

FBIO_PAD_32

41

Digital I/O

FBIO_PAD signal

FBIO_PAD_33

42

Digital I/O

FBIO_PAD signal

FBIO_PAD_34

43

Digital I/O

FBIO_PAD signal

FBIO_PAD_35

44

Digital I/O

FBIO_PAD signal

FBIO_PAD_RSTB

47

Digital Output

FBIO_PAD signal

EXT0_INT

48

Digital Output

FBIO_PAD signal

EXT1_INT

49

Digital Output

FBIO_PAD signal

 

SPI NAND

SPI NAND function pins can be output from multiplex pins by set register Group1.1(sft cfg 1) bit4 to 1. Please check below table with signals list.

Pin Name

Pin Number

Type

Description

Pin Name

Pin Number

Type

Description

SPI_NAND_D0

92

Digital I/O

SPI NAND data0

SPI_NAND_D2

93

Digital I/O

SPI NAND data2

SPI_NAND_CLK

94

Digital Output

SPI NAND clock

SPI_NAND_D1

95

Digital I/O

SPI NAND data1

SPI_NAND_D3

96

Digital I/O

SPI NAND data3

SPI_NAND_CEN

97

Digital Output

SPI NAND chip enable

SPI NOR

SPI NOR function pins can be output from multiplex pins by set register Group1.1(sft cfg 1) bit1 to 0 and bit0 to 1. Please check below table with signals list.

Pin Name

Pin Number

Type

Description

Pin Name

Pin Number

Type

Description

SPI_NOR_D2

102

Digital I/O

SPI NOR data2

SPI_NOR_CLK

103

Digital Output

SPI NOR clock

SPI_NOR_D1

104

Digital I/O

SPI NOR data1

SPI_NOR_D3

105

Digital I/O

SPI NOR data3

SPI_NOR_CEN

106

Digital Output

SPI NOR chip enable

SPI_NOR_D0

107

Digital I/O

SPI NOR data0