ST90135 datasheet(171/190 Pages) STMICROELECTRONICS

171 / 190 page

171/190

ST90158 - EIGHT-CHANNEL ANALOG TO DIGITAL CONVERTER (A/D)

ANALOG TO DIGITAL CONVERTER (Cont’d)

CHANNEL 6 LOWER THRESHOLD REGISTER

(LT6R)

R248 - Read/Write

Reset Value: undefined

Bit 7:0 = LT6.[7:0]:

Channel 6 Lower Threshold

User-defined lower threshold value for Channel 6,

to be compared with the conversion results.

CHANNEL 7 LOWER THRESHOLD REGISTER

(LT7R)

R249 - Read/Write

Reset Value: undefined

Bit 7:0 = LT7.[7:0]:

Channel 7 Lower Threshold.

User-defined lower threshold value for Channel 7,

to be compared with the conversion results.

CHANNEL 6 UPPER THRESHOLD REGISTER

(UT6R)

R250 - Read/Write

Reset Value: undefined

Bit 7:0 = UT6.[7:0]:

Channel 6 Upper Threshold

value.

User-defined upper threshold value for Channel 6,

to be compared with the conversion results.

CHANNEL 7 UPPER THRESHOLD REGISTER

(UT7R)

R251 - Read/Write

Reset Value: undefined

Bit 7:0 = UT7.[7:0]:

Channel 7 Upper Threshold

value

User-defined upper threshold value for Channel 7,

to be compared with the conversion results.

COMPARE RESULT REGISTER (CRR)

R252 - Read/Write

Reset Value: 0000 1111 (0Fh)

These bits are set by hardware and cleared by

software.

Bit 7 = C7U:

Compare Reg 7 Upper threshold

0: Threshold not reached

1: Channel 7 converted data is greater than or

equal to UT7R threshold register value.

Bit 6 = C6U:

Compare Reg 6Upper threshold

0: Threshold not reached

1: Channel 6 converted data is greater than or

equal to UT6R threshold register value.

Bit 5 = C7L:

Compare Reg 7 Lower threshold

0: Threshold not reached

1: Channel 7 converted data is less than the LT7R

threshold register value.

Bit 4 = C6L:

Compare Reg 6 Lower threshold

0: Threshold not reached

1: Channel 6 converted data is less than the LT6R

threshold register value.

Bit 3:0 = Reserved, returns “1” when read.

Note: Any software reset request generated by

writing to the AD_ICR, will also cause all the com-

pare status bits to be cleared.

LT6.7 LT6.6 LT6.5 LT6.4 LT6.3 LT6.2 LT6.1 LT6.0

LT7.7 LT7.6 LT7.5 LT7.4 LT7.3 LT7.2 LT7.1 LT7.0

UT6.

UT7.

C7U

C6U

C7L

C6L

ST90135 Datasheet(PDF) 171 Page - STMicroelectronics

ST90135 Datasheet(HTML) 171 Page - STMicroelectronics

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

Datasheet Download

Link URL