参数资料
型号: PC87393F-VJG
厂商: NATIONAL SEMICONDUCTOR CORP
元件分类: 外设及接口
英文描述: 100-Pin LPC SuperI/O Devices for Portable Applications
中文描述: MULTIFUNCTION PERIPHERAL, PQFP100
封装: TQFP-100
文件页数: 31/148页
文件大小: 1733K
代理商: PC87393F-VJG
8.0 Legacy Functional Blocks (Continued)
126
www.national.com
8.3
UART FUNCTIONALITY (SP1 AND SP2)
8.3.1
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.
8.3.2
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
Figure 30. 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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