Edit online

模块时钟

模块名称

总线时钟

模块时钟源

模块时钟极限频率

备注

E907 CORE

-

PLL_INT0

504MHz

-

E907 PLIC

-

PLL_INT0÷2

252MHz

-

E907 CLINT

-

PLL_INT0÷2

252MHz

-

E907 DM

-

CLK_24M

24MHz

-

AXI

AXI

-

240MHz

-

AHB

AHB

-

240MHz

-

APB0

APB0

-

100MHz

-

APB1

APB1

-

24MHz

-

BROM

AXI

-

-

-

SRAM

AXI

-

-

-

AHB Matrix

AHB

-

-

-

DMA

AHB

-

-

-

CE

AHB

PLL_INT1

200MHz

-

USB DEV

AHB

-

-

-

USB PHY

-

CLK_24M

-

-

EMAC

AHB

PLL_INT1

50MHz

-

XSPI

AHB

PLL_FRA0

400MHz

-

SPI0

AHB

PLL_FRA0

100MHz

-

SPI1

AHB

PLL_FRA0

100MHz

-

SPI2

AHB

PLL_FRA0

100MHz

-

SPI3

AHB

PLL_FRA0

100MHz

-

CORDIC

AHB

-

-

-

HCL

AHB

-

-

-

PBUS

AHB

-

-

-

SYSCFG

APB0

CLK_24M

24MHz

-

CMU

APB0

-

-

-

SPI_ENC

APB0

HCLK

-

-

PWMCS

APB0

PLL_INT1

200MHz

-

ADC

APB0

PLL_INT1

100MHz

-

AXICFG

APB0

-

-

-

GPIO

APB0

-

-

-

UART0

APB0

PLL_INT1

60MHz

-

UART1

APB0

PLL_INT1

60MHz

-

UART2

APB0

PLL_INT1

60MHz

-

UART3

APB0

PLL_INT1

60MHz

-

UART4

APB0

PLL_INT1

60MHz

-

UART5

APB0

PLL_INT1

60MHz

-

UART6

APB0

PLL_INT1

60MHz

-

UART7

APB0

PLL_INT1

60MHz

-

TA-IF

APB0

PLL_INT1

240MHz

-

EDAT-IF

APB0

PLL_INT1

240MHz

-

BIS-IF

APB0

PLL_INT1

240MHz

-

SDFM

APB0

PLL_INT1

240MHz

-

WDOG

APB1

CLK_32K

32KHz

-

WRI

APB1

CLK_24M

24MHz

-

SID

APB1

CLK_24M

24MHz

-

GTC

APB1

-

-

-

I2C0

APB1

-

-

-

I2C1

APB1

-

-

-

I2C2

APB1

-

-

-

I2C3

APB1

-

-

-

CAN0

APB1

-

-

-

CAN1

APB1

-

-

-

PWM

APB1

PLL_INT1

100MHz

-

ADCIM

APB1

PLL_INT1

100MHz

-

THS

APB1

-

-

-

CPM

APB1

-

-

-

模块名称

总线时钟

模块时钟源

模块时钟极限频率

备注

C906 CORE

-

PLL_INT0

504MHz

600MHz@1.2V

AXI

AXI

-

240MHz

-

AHB

AHB

-

240MHz

-

APB0

APB0

-

100MHz

-

APB1

APB1

-

24MHz

-

AHB Matrix

AHB0

-

-

-

BROM

AHB0

-

-

-

SRAM

AHB0

-

-

-

DMA

AHB0

-

-

-

CE

AHB0

PLL_INT1

200MHz

-

USB DEV

AHB0

-

-

-

USB HOST0

AHB0

-

-

-

USB HOST1

AHB0

-

-

-

USB PHY0

-

OSC_24M

-

-

USB PHY1

-

OSC_24M

-

-

GMAC0

AHB0

PLL_INT1

50MHz

-

GMAC1

AHB0

PLL_INT1

50MHz

-

QSPI0

AHB0

PLL_FRA0

100MHz

-

QSPI1

AHB0

PLL_FRA0

100MHz

-

QSPI2

AHB0

PLL_FRA0

100MHz

-

QSPI3

AHB0

PLL_FRA0

100MHz

-

SDMC0

AHB0

PLL_FRA0

200MHz

-

SDMC1

AHB0

PLL_FRA0

200MHz

-

SDMC2

AHB0

PLL_FRA0

200MHz

-

PBUS

AHB0

-

-

-

SYSCFG

APB0

OSC_24M

24MHz

-

CMU

APB0

-

-

-

CMT (SIM)

APB0

-

-

-

SPI ENC

APB0

PLL_INT1

200MHz

-

PWMCS

APB0

PLL_INT1

200MHz

-

PSADC

APB0

-

-

-

DDR CTL

APB0

-

-

-

MTOP

APB0

-

-

-

DDR PHY

APB0

PLL_FRA0

336MHz

-

I2S0

APB0

PLL_FRA1

26MHz

-

I2S1

APB0

PLL_FRA1

26MHz

-

AUDIO

APB0

PLL_FRA1

26MHz

-

LCD

APB0

PLL_FRA2

800MHz

DISP_PIXCLK:200MHz

LVDS

APB0

PLL_FRA2

1000MHz

DISP_PIXCLK:200MHz

MIPI DSI

APB0

PLL_FRA2

1200MHz

DISP_PIXCLK:200MHz

DVP

APB0

PLL_INT1

200MHz

-

DE

APB0

PLL_INT1

200MHz

DISP_PIXCLK:200MHz

GE

APB0

PLL_INT1

200MHz

-

VE

TBD

PLL_INT1

200MHz

-

WDOG

APB1

CLK_32K

30KHz

-

WRI

APB1

OSC_24M

24MHz

-

SID

APB1

OSC_24M

24MHz

-

RTC

APB1

RTC domain

-

-

GTC

APB1

-

-

-

GPIO

APB1

-

-

-

PMT (SIM)

APB1

-

-

-

UART0

APB1

PLL_INT1

60MHz

-

UART1

APB1

PLL_INT1

60MHz

-

UART2

APB1

PLL_INT1

60MHz

-

UART3

APB1

PLL_INT1

60MHz

-

UART4

APB1

PLL_INT1

60MHz

-

UART5

APB1

PLL_INT1

60MHz

-

UART6

APB1

PLL_INT1

60MHz

-

UART7

APB1

PLL_INT1

60MHz

-

I2C0

APB1

-

-

-

I2C1

APB1

-

-

-

I2C2

APB1

-

-

-

I2C3

APB1

-

-

-

CAN0

APB1

-

-

-

CAN1

APB1

-

-

-

PWM

APB1

PLL_INT1

100MHz

-

ADCIM

APB1

OSC_24M

24MHz

-

GPAI

APB1

-

-

-

RTP

APB1

-

-

-

THS

APB1

-

-

-

CIR

APB1

-

-

-

UART 在 PLL_INT1=1.2GHz 下波特率精度
表 1. UART 波特率与误差率

设定波特率

实际波特率

波特率偏差

CMU 除频

Over sampling

Clock source

UART 除频

300

300

0

25

16

48000000

10000

600

600

0

25

16

48000000

5000

1200

1200

0

25

16

48000000

2500

2400

2400

0

25

16

48000000

1250

4800

4800

0

25

16

48000000

625

9600

9615

0.16

25

16

48000000

312

14400

14423

0.16

25

16

48000000

208

19200

19230

0.16

25

16

48000000

156

38400

38461

0.16

25

16

48000000

78

57600

57692

0.16

25

16

48000000

52

115200

115384

0.16

25

16

48000000

26

230400

230769

0.16

25

16

48000000

13

380400

378787

-0.42

22

16

54545454

9

460800

462963

0.47

27

16

44444444

6

921600

925925

0.47

27

16

44444444

3

1000000

1000000

0

25

16

48000000

3

1152000

1136363

1.36

22

16

54545454

3

1500000

1500000

0

25

16

48000000

2

2500000

2500000

0

30

16

40000000

1

3000000

3000000

0

25

16

48000000

1