PC87413 datasheet(192/257 Pages) NSC

tên linh kiện	PC87413

Giải thích chi tiết về linh kiện	LPC ServerI/O for Servers and Workstations

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

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192

Revision1.2

9.3.15

Bank Select Register (BANKSEL)

This register selects the active bank for the upper offsets (10h-1Fh). Since the access to registers at offsets 10h-1Fh requires

two transactions (first to BANKSEL and then to the specific register) and since the LPC bus and ACCESS.bus access the

module concurrently (PC87413 and PC87417), the BANKSEL register is duplicated (one is accessed by the host and one

by the ACCESS.bus).This register is reset by hardware to 00h.

Power Well:VPP

Location:All Banks, Offset 0Fh

Type:

R/W

Bit

43210

Name

Reserved

BNK_SEL

Reset

00000

Bit

Description

7-2

Reserved.

1-0

BNK_SEL (Bank Select). This ﬁeld selects the active bank for the upper offsets (10h-1Fh).

Bits

1 0

Active Bank

0 0:

Bank 0: holds registers related to the Keyboard/Mouse Wake-up Detector (default)

0 1:

Bank 1: holds registers related to the Power Active timers

1 0:

Bank 2: holds registers related to sleep states and ACPI configuration

1 1:

Bank 3: holds registers related to watchdog configuration and control

PC87413 bảng dữ liệu(PDF) 192 Page - National Semiconductor (TI)