PC87591L datasheet(214/437 Pages) NSC

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Embedded Controller Modules (Continued)

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Revision 1.07

ACM Conﬁguration Register (ACMCNF)

This register controls the configuration of the ACM module. ACMCNF is cleared (0016) on reset.

Location: 00 FD4216

Type: R/W

Bit

76543210

Name

Reserved

OVUNSEL

INTOUEN

INTEMEN

Reserved

ACMMOD

Reset

00000000

Bit

Description

1-0

ACMMOD (ACM Mode Control). Conﬁgures the operation mode of the ACM module. See “ACM Operating

Sequences” on page 211. This value becomes the active mode after writing a 1 to START bit in ACMCTS

Bits

1 0

Description

0 0:

ACM disabled (default)

0 1:

Voltage Level Burst mode - single measurement of the voltage level for all the eight inputs

1 0:

Threshold Comparison Burst mode - single comparison of all the eight inputs to the set threshold

1 1:

Low-Power Threshold Comparison mode - periodic comparison of the inputs to a constant threshold

(recommended for Idle PC87591x operation mode). Its operation is stopped by the

selection of a different mode (ACM disabled = 002 is the recommended value).

Reserved.

INTEMEN (Interrupt from End-of-Measurement Event Enable). Enables generation of an ACM interrupt on an

End of Voltage Measurement Burst event (EOMEV in ACMCTS register).

0: Disabled (default)

1: Enabled - ACM Interrupt from EOMEV

INTOUEN (Interrupt from Over/Under Threshold Event Enable). Enables generation of an ACM interrupt on

at least one input above (or below) the threshold event (OVUNTHEV ACMCTS register).

0: Disabled (default)

1: Enabled - ACM Interrupt from OVUNTHEV

OVUNSEL (Over or Under Threshold Select). “Any Over” or “Any Under” logic selection for OVUNTHEV bit in

ACMCTS register.

0: At least one input below threshold sets OVUNTHEV=1 (default)

1: At least one input above threshold sets OVUNTHEV=1

7-6

Reserved.

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