Rainbow-electronics T89C51CC02 Manual de usuario descargar pdf (Pagina 120)

120 Rev.A - May 17, 2001

Preliminary

T89C51CC02

ADCLK (S:F2h)

ADC Clock Prescaler

Reset Value: XXX0 0000b

Figure 123. ADCLK Register

ADDH (S:F5h Read Only)

ADC Data High byte register

Reset Value: 00h

Figure 124. ADDH Register

ADDL (S:F4h Read Only)

ADC Data Low byte register

Reset Value: 00h

Figure 125. ADDL Register

7 6 5 4 3 2 1 0

- - - PRS 4 PRS 3 PRS 2 PRS 1 PRS 0

Bit Number Bit Mnemonic Description

7-5 -

Reserved

The value read from these bits are indeterminate. Do not set these bits.

4-0 PRS4:0

Clock Prescaler

ADC

= fosc / (4 (or 2 in X2 mode)* PRS)

7 6 5 4 3 2 1 0

ADAT 9 ADAT 8 ADAT 7 ADAT 6 ADAT 5 ADAT 4 ADAT 3 ADAT 2

Bit Number Bit Mnemonic Description

7-0 ADAT9:2

ADC result

bits 9-2

7 6 5 4 3 2 1 0

------ADAT 1 ADAT 0

Bit Number Bit Mnemonic Description

7-2 -

Reserved

The value read from these bits are indeterminate. Do not set these bits.

1-0 ADAT1:0

ADC result

bits 1-0

1 2 ... 115 116 117 118 119 120 121 122 123 124 125 ... 136 137

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Rainbow-electronics T89C51CC02 Manual de usuario Pagina 120