 2004 Microchip Technology Inc.

DS21760F-page 21

PS700

In order for the A/D control registers to function according to their names, their select fields should be programmed as

follows.

TABLE 4-4:

A/D CONTROL REGISTER FUNCTIONS

4.4.12

A/D RESULT REGISTERS

The eight 16-bit ADres registers are defined as follows.

TABLE 4-5:

A/D RESULT REGISTERS

The following register defines the bits contained in the eight 16-bit ADres registers.

REGISTER 4-4:

ADres REGISTERS

A/D Reg. #

Name

Select Value

ADc0

Ictrl

0

ADc1

ITctrl

1

ADc2

ETctrl

2

ADc3

VPctrl

3

ADc4

VC1ctrl

4

ADc5

VC2ctrl

5

ADc6

OFFSctrl

6

ADc7

AUXctrl

X

A/D Reg. #

Name

Function

Location (HEX)

ADr0

Ictrl

Current measurement result

40

ADr1

ITctrl

Internal temperature measurement result

44

ADr2

ETctrl

External temperature measurement result

48

ADr3

VPctrl

Pack voltage measurement result

4C

ADr4

VC1ctrl

VC1 voltage measurement result

50

ADr5

VC2ctrl

VC2 voltage measurement result

54

ADr6

OFFSctrl

Offset measurement result

58

ADr7

AUXctrl

Auxiliary measurement result

5C

Sign

Magnitude

bit 15

bit 0

bit 15

Sign: Polarity of the A/D Measurement bit

The Sign bit shows the polarity of the given result where:

1

= The value is negative

0

= The value is positive

bit 14-0

Magnitude: Magnitude of A/D Output bits

Magnitude reports the value of the A/D measurement, with all ‘0’s representing a 0 value and

all ‘1’s representing full scale.

Legend:

‘1’ = Bit is set

‘0’ = Bit is cleared

R = Reserved bit

Note:

The resolution bits, as defined in the ADctrl register, specify the measurement resolution and therefore,

number of bits stored in the ADres registers. The value stored in the ADres registers is left justified. Bits

beyond the selected resolution should be ignored.