PC87373 datasheet(94/174 Pages) NSC

94 / 174 page

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

www.national.com

Revision 1.1

6.3.7

Keyboard Wake-Up Control Register (KBDWKCTL)

This register configures the keyboard events detected by the Keyboard/Mouse Wake-Up Detector. It is reset to 40h.

Power Well: VSB3

Location:

Offset 04h

Type:

R/W or RO

Bit

43210

Name

KBDMODE

EVT3CFG

EVT2CFG

EVT1CFG

Reset

00000

Bit

Description

7-6

KBDMODE (Keyboard Mode Select). This ﬁeld selects one of the keyboard wake-up modes for the

Keyboard/Mouse Wake-Up Detector.

Bits

7 6

Keyboard Wake-Up Mode

0 0:

Special Key Sequence or Password: Configured by bits 3-0 of PS2CTL register

0 1:

Fast Any-Key: Indicates that any key was pressed on the keyboard (default)

1 0:

Power Management Keys: Configured by bits 5-0 of KBDWKCTL register

1 1:

Reserved

5-4

EVT3CFG (Keyboard Event 3 Configuration). These bits conﬁgure the keyboard data sequence for Keyboard

Event 3, which indicates that “PM Key 3” was pressed on the keyboard. The setting of the EVT3CFG ﬁeld is

relevant only if the Keyboard/Mouse Wake-Up Detector is in Power Management Keys mode (KBDMODE = 10).

The keyboard data sequence used to detect Keyboard Event 3 is stored in registers PS2KEY6-7, starting with

PS2KEY6.

Bits

5 4

Sequence Length

0 0:

0 bytes: Keyboard Event 3 disabled (default)

0 1:

1 byte: PS2KEY6

1 0:

2 bytes: PS2KEY6, PS2KEY7

1 1:

Reserved

3-2

EVT2CFG (Keyboard Event 2 Configuration). These bits conﬁgure the keyboard data sequence for Keyboard

Event 2, which indicates that “PM Key 2” was pressed on the keyboard. The setting of the EVT2CFG ﬁeld is

relevant only if the Keyboard/Mouse Wake-Up Detector is in Power Management Keys mode (KBDMODE = 10).

The keyboard data sequence used to detect Keyboard Event 2 is stored in registers PS2KEY3-5, starting with

PS2KEY3.

Bits

3 2

Sequence Length

0 0:

0 bytes: Keyboard Event 2 disabled (default)

0 1:

1 byte: PS2KEY3

1 0:

2 bytes: PS2KEY3, PS2KEY4

1 1:

3 bytes: PS2KEY3, PS2KEY4, PS2KEY5

1-0

EVT1CFG (Keyboard Event 1 Configuration). These bits conﬁgure the keyboard data sequence for Keyboard

Event 1, which indicates that “PM Key 1” was pressed on the keyboard. The setting of the EVT1CFG ﬁeld is

relevant only if the Keyboard/Mouse Wake-Up Detector is in Power Management Keys mode (KBDMODE = 10).

The keyboard data sequence used to detect Keyboard Event 1 is stored in registers PS2KEY0-2, starting with

PS2KEY0.

Bits

1 0

Sequence Length

0 0:

0 bytes: Keyboard Event 1 disabled (default)

0 1:

1 byte: PS2KEY0

1 0:

2 bytes: PS2KEY0, PS2KEY1

1 1:

3 bytes: PS2KEY0, PS2KEY1, PS2KEY2

PC87373 데이터시트(PDF) 94 Page - National Semiconductor (TI)

PC87373 데이터시트(HTML) 94 Page - National Semiconductor (TI)

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

데이터시트 다운로드

링크 URL