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PC87364-XXX/VLA Datasheet(PDF) 157 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
No. de pieza PC87364-XXX/VLA
Descripción Electrónicos  128-Pin LPC SuperI/O with Extended Wake-Up and Protection Support
PDF  180 Pages
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Fabricante Electrónico  NSC [National Semiconductor (TI)]
Página de inicio  http://www.national.com
Logo NSC - National Semiconductor (TI)

PC87364-XXX/VLA Datasheet(HTML) 157 Page - National Semiconductor (TI)

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9.0 Legacy Functional Blocks (Continued)
155
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9.4
UART FUNCTIONALITY (SP1 AND SP2)
9.4.1
General Description
Both SP1 and SP2 provide UART functionality. The generic SP1 and SP2 support serial data communication with remote
peripheral device or modem using a wired interface. The functional blocks can function as a standard 16450, 16550, or as
an Extended UART.
9.4.2
UART Mode Register Bank Overview
Four register banks, each containing eight registers, control UART operation. All registers use the same 8-byte address
space to indicate offsets 00h through 07h. The BSR register selects the active bank and is common to all banks. See Figure
27.
Figure 27. UART Mode Register Bank Architecture
BANK 0
BANK 1
BANK 2
BANK 3
Offset 07h
Offset 06h
Offset 05h
Offset 04h
LCR/BSR
Offset 02h
Offset 01h
Offset 00h
Common
Register
Throughout
All Banks
16550 Banks



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