Figure 3.23.7 ad conversion registers – Toshiba H1 Series User Manual

Page 604

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TMP92CZ26A

92CZ26A-601

AD Conversion Result Register 2 Low

7 6 5 4 3 2 1 0

bit

Symbol

ADR21

ADR20

OVR2

ADR2RF

Read/Write R

R

R

After

reset

0

0 0

0

Function

Store Lower 2 bits of

AN2 AD conversion

result

Overrun

flag


0:No generate
1: Generate

AD conversion
result store
flag

1: Stored

AD Conversion Result Register 1 High

7 6 5 4 3 2 1 0

bit Symbol

ADR29

ADR28

ADR27

ADR26 ADR25 ADR24 ADR23 ADR22

Read/Write R

After

reset

0 0 0 0 0 0 0 0

Function

Store Upper 8 bits of AN2 AD conversion result

AD Conversion Result Register 3 Low

7 6 5 4 3 2 1 0

bit

Symbol

ADR31

ADR30

OVR3

ADR3RF

Read/Write R

R

R

After

reset

0

0 0

0

Function

Store Lower 2 bits of

AN3 AD conversion

result

Overrun

flag


0:No generate
1: Generate

AD conversion
result store
flag

1: Stored

AD Conversion Result Register 3 High

7 6 5 4 3 2 1 0

bit Symbol

ADR39

ADR38

ADR37

ADR36 ADR35 ADR34 ADR33 ADR32

Read/Write R

After

reset

0 0 0 0 0 0 0 0

Function

Store Upper 8 bits of AN3 AD conversion result

9

8

7

6

5

4

3

2

1

0

Channel X conversion result

7

6

5

4

3

2

1

0

7

6

5

4

3

2

1

0

Figure 3.23.7 AD Conversion Registers

ADREG2L
(12A4H)

ADREG2H
(12A5H)

ADREG3L
(12A6H)

ADREG3H
(12A7H)

ADREGxH ADREGxL

• Bits

5

∼ 2 are always read as “0”.

Bit 0 is the AD conversion result store flag <ADRxRF>. When AD conversion result is stored, the flag is set to “1”.

When Lower register (ADRECxL) is read, this bit is cleared to “0”.

Bit 1 is the Overrun flag <OVRx>. This bit is set to “1” if a next conversion result is written to the ADREGxH/L

before both the ADREGxH and ADREGxL are read. This bit is cleared to “0” by reading Flag.

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