Rainbow-electronics MAX1364 Manual do Utilizador descarregar pdf (Página 17)

MAX1363/MAX1364

4-Channel, 12-Bit System Monitors with Programmable

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HIGH CH1 CH0 12/11

HIGH HIGH

DATA

(MSB)

D8 D7 D6 D5 D4 D3 D2 D1 D0

1 0/1 0/1

0 = 10b

1 = 12b

110/1 0/1 ACK 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1

ACK/

NACK

Table 8. Data Format

START

CONDITION

START

ADDRESS

FROM THE MASTER

1, CH ADD, 10b/12b FLAG,

RESULT (4 MSBs)

RESULT (8 LSBs)

1 ACK ACK ACK STOP

R/W

ACQ

CONV

Figure 10. Example of Reading the Conversion Result—External Clock Mode

START

ADDRESS

FROM THE MASTER

MAX1363/MAX1364

KEEPS SCL LOW

RESULT (8 LSBs)

1, CH ADD, 10b/12b,

RESULT (4 MSBs)

1 ACK

ACK

ACK STOP

ACQ

CONV

6.8µs MAX

R/W

Figure 11. Example of a Single Conversion Using the Internal Clock, SCAN = 1,1

START

MAX1363/MAX1364

KEEPS SCL LOW

ADDRESS

FROM THE MASTER

1 ACK

ACKACK

ACQ

CONV

ACQ

CONV

CONVERSION 1

6.8µs MAX

CONVERSION 2

MAX1363/MAX1364

KEEPS SCL LOW

1, CH ADD, 10b/12b,

RESULT (4 MSBs)

RESULT 1

(8 LSBs)

STOPACK

ACK

1, CH ADD, 10b/12b,

RESULT (4 MSBs)

RESULT N

(8 LSBs)

ACQ

CONV

CONVERSION N

R/W

Figure 12. Example of Scan-Mode Conversions Using the Internal Clock, SCAN = 0,0 and 0,1

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 23 24

MAX1363/MAX1364 1

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