ST90158 - EIGHT-CHANNEL ANALOG TO DIGITAL CONVERTER (A/D)
ANALOG TO DIGITAL CONVERTER (Cont’d)
CHANNEL 6 LOWER THRESHOLD REGISTER
(LT6R)
R248 - Read/Write
CHANNEL 7 UPPER THRESHOLD REGISTER
(UT7R)
R251 - Read/Write
Register Page: 63
Reset Value: undefined
Register Page: 63
Reset Value: undefined
7
0
7
0
UT7. UT7. UT7. UT7. UT7. UT7. UT7. UT7.
LT6.7 LT6.6 LT6.5 LT6.4 LT6.3 LT6.2 LT6.1 LT6.0
7
6
5
4
3
2
1
0
Bit 7:0 = LT6.[7:0]: Channel 6 Lower Threshold
Bit 7:0 = UT7.[7:0]: Channel 7 Upper Threshold
value
User-defined lower threshold value for Channel 6,
to be compared with the conversion results.
User-defined upper threshold value for Channel 7,
to be compared with the conversion results.
CHANNEL 7 LOWER THRESHOLD REGISTER
(LT7R)
R249 - Read/Write
COMPARE RESULT REGISTER (CRR)
R252 - Read/Write
Register Page: 63
Reset Value: undefined
Register Page: 63
Reset Value: 0000 1111 (0Fh)
7
0
7
0
1
LT7.7 LT7.6 LT7.5 LT7.4 LT7.3 LT7.2 LT7.1 LT7.0
C7U C6U C7L C6L
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.
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.
CHANNEL 6 UPPER THRESHOLD REGISTER
(UT6R)
R250 - Read/Write
Register Page: 63
Reset Value: undefined
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.
7
0
UT6. UT6. UT6. UT6. UT6. UT6. UT6. UT6.
7
6
5
4
3
2
1
0
Bit 5 = C7L: Compare Reg 7 Lower threshold
0: Threshold not reached
1: Channel 7 converted data is less than the LT7R
Bit 7:0 = UT6.[7:0]: Channel 6 Upper Threshold
value.
User-defined upper threshold value for Channel 6,
threshold register value.
to be compared with the conversion results.
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.
175/199
9
ETC [ ETC ]
