PC87373 datasheet(95/174 Pages) NSC

95 / 174 page

6.0 System Wake-Up Control (SWC) (Continued)

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Revision 1.1

6.3.8

PS2 Protocol Control Register (PS2CTL)

This register configures the keyboard and mouse events detected by the Keyboard/Mouse Wake-Up Detector. It is reset

to 10h.

Power Well: VSB3

Location:

Offset 05h

Type:

R/W or RO

Bit

43210

Name

DISPAR

MSEVCFG

KBEVCFG

Reset

10000

Bit

Description

DISPAR (Disable Parity Check). This controls the parity checking of the keyboard and mouse data by the

Keyboard/Mouse Wake-Up Detector.

0: Enable parity check (default)

1: Disable parity check

6-4

MSEVCFG (Mouse Event Configuration). These bits conﬁgure the mouse data sequence for the Mouse event.

Before setting them to a new value, these bits must be cleared by writing a value of ‘000’.

Bits

6 5 4

Event Configuration

0 0 0:

Disable mouse wake-up detection

0 0 1:

Wake-up on any mouse movement or button click (default)

0 1 0:

Wake-up on left button click

0 1 1:

Wake-up on left button double-click

1 0 0:

Wake-up on right button click

1 0 1:

Wake-up on right button double-click

1 1 0:

Wake-up on any button single-click (left, right or middle)

1 1 1:

Wake-up on any button double-click (left, right or middle)

3-0

KBEVCFG (Keyboard Event Configuration). These bits conﬁgure the keyboard data sequence for the

Keyboard event indicating that any key or key sequence was pressed on the keyboard. The setting of the

KBEVCFG ﬁeld is relevant only if the Keyboard/Mouse Wake-Up Detector is in either Special Key Sequence or

Password mode (KBDMODE = 00). The keyboard data sequence used to detect a Keyboard Event is stored in

registers PS2KEY0-7, starting with PS2KEY0. Before setting them to a new value, the KBEVCFG ﬁeld must be

cleared by writing a value of ‘0000’.

Bits

3 2 1 0

Event Configuration

0 0 0 0 :

Disable keyboard wake-up detection (default)

0 0 0 1

0 1 1 1

1 0 0 0

1 1 1 1

} SpecialKeySequencemodeconsistingoffromtwotoeightPS/2databytes,“Make”and

“Break” codes (including Shift and Alt keys)

Password Enabled mode with consisting of from one to eight keys “Make” code (excluding Shift

and Alt keys)

}

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