EPC635 datasheet(29/97 Pages) EPC

29 / 97 page

Note 2:

Each EE_DATA write starts erase/programming EEPROM. Each EEPROM write takes 20ms, then it auto-increments

the EE_ADDR by 1.

Note 3:

Corresponding control register value is not modified. Only EEPROM register is modified.

Note 4:

EEPROM content will only be copied to corresponding control register after RESET.

Direct burst write to EEPROM: Store 8 bytes at address 0xE8 ... 0xEF

PRECONDITION: None

i2cMultiWrite(0x20, 0xE8, &(0x22,0x28,0x20,0x26,0x18,0x17,0x19,0x19), 8);

// Store 8x bytes,

// calibration point registers Temp_xx_cal1/2, 20µs + 8 x (9µs + 20ms) = ~160.1ms

i2cSingleWrite(0x20, 0x02, 0x05);

// MEM_CTRL_CONF = 0x05 (ee_direct_access = 0), 29µs

done.

Note 1:

Start address is sent only one time.

Note 2:

Corresponding control register value is not modified. Only EEPROM register is modified.

Note 3:

EEPROM content will only be copied to corresponding control register after RESET.

Indirect single read from EEPROM: Read 2 bytes from address 0xEA and 0xEB

PRECONDITION: None

i2cSingleWrite(0x20, 0x11, 0xEA);

// EE_ADDR = 0xEA, 29µs

cal1 = i2cSingleRead(0x20, 0x12);

// cal1 = EE_DATA (Temp_tr_cal1 = 0x20), 39µs

cal2 = i2cSingleRead(0x20, 0x12);

// cal2 = EE_DATA (Temp_tr_cal2 = 0x26), 39µs

...

done.

Note 1:

Start address is written in EE_ADDR.

Note 2:

Each EE_DATA read auto-increments the EE_ADDR by 1.

Note 3:

Corresponding control register value is not modified. Only EEPROM is read.

Direct burst read from EEPROM: Read 8 bytes from address 0xE8 ... 0xEF

PRECONDITION: None

i2cSingleWrite(0x20, 0x02, 0x07);

// MEM_CTRL_CONF = 0x07 (ee_direct_access = 1), 29µs

cal_arr[] = i2cMultiRead(0x20, 0xE8, 8);

// Read 8 bytes calibration points Temp_xx_cal1/2, 20µs + 8 x 9µs = 92µs

i2cSingleWrite(0x20, 0x02, 0x05);

// MEM_CTRL_CONF = 0x05 (ee_direct_access = 0), 29µs

done.

Note 1:

Start address is sent only one time.

Note 2:

Corresponding control register value is not modified. Only EEPROM is read.

Characteristics subject to change without notice

29 / 97

Datasheet_epc635-V1.02

EPC635 数据表(PDF) 29 Page - Espros Photonics corp

EPC635 数据表(HTML) 29 Page - Espros Photonics corp

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

数据表下载

链接网址

EPC635 数据表(PDF) 29 Page - Espros Photonics corp

EPC635 数据表(HTML) 29 Page - Espros Photonics corp

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

数据表 下载

链接网址

数据表下载