PC87372 datasheet(77/144 Pages) NSC

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

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Revision 1.2

6.3 SWC REGISTERS

The offsets of the SWC registers are related to the base address determined by the SWC Base Address register at indexes

60h-61h in the SWC Logical Device configuration.

The following abbreviations are used to indicate the Register Type:

R/W

= Read/Write.

= Read from register (data written to this address is sent to a different register).

= Write (see above).

= Read Only.

= Write Only. Reading from the bit returns 0.

R/W1C = Read/Write 1 to Clear. Writing 1 to a bit clears it to 0. Writing 0 has no effect.

R/W1S = Read/Write 1 to Set. Writing 1 to a bit sets its value to 1. Writing 0 has no effect.

6.3.1

SWC Register Map

The following table lists the SWC registers. For the SWC register bitmap, see Section 6.5 on page 93. The SWC registers

are VSB3 powered.

Table 30. SWC Register Map

Offset

Option1

1. Selected by LED_OPT bit in SWC_CTL register.

Mnemonic

Type

Power Well

Section

00h

LED_OPT = 1

SLEDCTL

Standard LED Control

R/W or RO

VSB3

6.3.2

LED_OPT = 0

Reserved

01h

SWC_CTL

SWC Miscellaneous Control

Varies per bit

VSB3

6.3.3

02h

LED_OPT = 1

Reserved

LED_OPT = 0

ALEDCTL

Advanced LED Control

R/W or RO

VSB3

6.3.4

03h

LED_OPT = 1

Reserved

LED_OPT = 0

LEDBLNK

LED Blinking Control

R/W or RO

VSB3

6.3.5

04h

KBDWKCTL

Keyboard Wake-Up Control

R/W or RO

VSB3

6.3.6

05h

PS2CTL

PS2 Protocol Control

R/W or RO

VSB3

6.3.7

06h

KDSR

Keyboard Data Shift-Register

VSB3

6.3.8

07h

MDSR

Mouse Data Shift-Register

VSB3

6.3.9

08h

PS2KEY0

PS2 Keyboard Key Data 0

R/W, RO

VSB3

6.3.10

09h

PS2KEY1

PS2 Keyboard Key Data 1

R/W, RO

VSB3

6.3.10

0Ah

PS2KEY2

PS2 Keyboard Key Data 2

R/W, RO

VSB3

6.3.10

0Bh

PS2KEY3

PS2 Keyboard Key Data 3

R/W, RO

VSB3

6.3.10

0Ch

PS2KEY4

PS2 Keyboard Key Data 4

R/W, RO

VSB3

6.3.10

0Dh

PS2KEY5

PS2 Keyboard Key Data 5

R/W, RO

VSB3

6.3.10

0Eh

PS2KEY6

PS2 Keyboard Key Data 6

R/W, RO

VSB3

6.3.10

0Fh

PS2KEY7

PS2 Keyboard Key Data 7

R/W, RO

VSB3

6.3.10

PC87372 Datasheet(PDF) 77 Page - National Semiconductor (TI)

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