PC87413 datasheet(194/257 Pages) NSC

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

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194

Revision1.2

9.3.17

PS2 Protocol Control Register (PS2CTL)

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

by hardware to 00h.

Power Well:VPP

Location: Bank 0, Offset 13h

Type:

R/W

Bit

43210

Name

DISPAR

MSEVCFG

KBEVCFG

Reset

00000

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 000b.

Bits

6 5 4

Event Configuration

0 0 0:

Disable mouse wake-up detection (default)

0 0 1:

Wake-up on any mouse movement or button click

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, which indicates 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 = 0). The keyboard data sequence used to detect a Keyboard Event is stored in

registers PS2KEY0 to PS2KEY7, starting with PS2KEY0. Before setting them to a new value, the KBEVCFG

ﬁeld must be cleared by writing a value of 0000b.

Bits

3 2 1 0

Event Configuration

0 0 0 0:

Disable keyboard wake-up detection (default)

0 0 0 1

Special Key Sequence mode 2-8 PS/2 data bytes, “Make” and “Break” (including Shift and Alt keys)

0 1 1 1

1 0 0 0

Password Enabled mode with 1-8 keys “Make” code (excluding Shift and Alt keys)

1 1 1 1

}

PC87413 Datasheet(PDF) 194 Page - National Semiconductor (TI)

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