MPC8560CPXAPDB datasheet(49/108 Pages) FREESCALE

49 / 108 page

MPC8560 Integrated Processor Hardware Specifications, Rev. 3.1

Freescale Semiconductor

CPM

Table 35 shows CPM I2C AC Timing.

Figure 30 is a a diagram of CPM I2C Bus Timing.

Figure 30. CPM I2C Bus Timing Diagram

Table 35. CPM I2C AC Timing

Characteristic

Symbol

Min

Max

Unit

SCL clock frequency (slave)

fSCL

FMAX

SCL clock frequency (master)

fSCL

BRGCLK/16512

BRGCLK/48

Bus free time between transmissions

tSDHDL

1/(2.2 * fSCL)

Low period of SCL

tSCLCH

1/(2.2 * fSCL)

High period of SCL

tSCHCL

1/(2.2 * fSCL)

Start condition setup time 2

tSCHDL

2/(divider * fSCL)

Start condition hold time 2

tSDLCL

3/(divider * fSCL)

Data hold time 2

tSCLDX

2/(divider * fSCL)

Data setup time 2

tSDVCH

3/(divider * fSCL)

SDA/SCL rise time

tSRISE

1/(10 * fSCL)

SDA/SCL fall time

tSFALL

1/(33 * fSCL)

Stop condition setup time

tSCHDH

2/(divider * fSCL)

Notes:

1.FMAX = BRGCLK/(min_divider*prescaler). Where prescaler=25-I2MODE[PDIV]; and min_divider=12 if digital filter

disabled and 18 if enabled.

Example #1: if I2MODE[PDIV]=11 (prescaler=4) and I2MODE[FLT]=0 (digital filter disabled) then

FMAX=BRGCLK/48

Example #2: if I2MODE[PDIV]=00 (prescaler=32) and I2MODE[FLT]=1 (digital filter enabled) then

FMAX=BRGCLK/576

2.divider = fSCL/prescaler .

In master mode: divider=BRGCLK/(fSCL*prescaler)=2*(I2BRG[DIV]+3)

In slave mode: divider=BRGCLK/(fSCL*prescaler)

SCL

SDA

tSDHDL

tSCLCH

tSCHCL

tSCHDL

tSDLCL

tSCLDX

tSDVCH

tSRISE

tSFALL

tSCHDH

MPC8560CPXAPDB 数据表(PDF) 49 Page - Freescale Semiconductor, Inc

MPC8560CPXAPDB 数据表(HTML) 49 Page - Freescale Semiconductor, Inc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

数据表下载

链接网址

MPC8560CPXAPDB 数据表(PDF) 49 Page - Freescale Semiconductor, Inc

MPC8560CPXAPDB 数据表(HTML) 49 Page - Freescale Semiconductor, Inc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

数据表 下载

链接网址

数据表下载