ST90E158LV 데이터 시트보기 (PDF) - STMicroelectronics

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ST90E158LV

8/16-BIT MCU FAMILY WITH UP TO 64K ROM/OTP/EPROM AND UP TO 2K RAM

STMicroelectronics 

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

ANALOG TO DIGITAL CONVERTER (Cont’d)

CHANNEL 6 LOWER THRESHOLD REGISTER

(LT6R)

R248 - Read/Write

Register Page: 63

Reset Value: undefined

7

0

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

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

Register Page: 63

Reset Value: undefined

7

0

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

CHANNEL 7 UPPER THRESHOLD REGISTER

(UT7R)

R251 - Read/Write

Register Page: 63

Reset Value: undefined

7

0

UT7. UT7. UT7. UT7. UT7. UT7. UT7. UT7.

7

6

5

4

3

2

1

0

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

Register Page: 63

Reset Value: 0000 1111 (0Fh)

7

0

C7U C6U C7L C6L 1

1

1

1

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

Register Page: 63

Reset Value: undefined

7

0

UT6. UT6. UT6. UT6. UT6. UT6. UT6. UT6.

7

6

5

4

3

2

1

0

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.

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.

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