PC87393VJG National Semiconductor, PC87393VJG Datasheet - Page 126

• Manufacturer Part Number: PC87393VJG
• Description: IC, SUPER I/O DEVICE, TQFP-100
• Manufacturer: National Semiconductor

Specifications of PC87393VJG

• Data Rate: 2Mbps
• Supply Voltage Range: 3V to 3.6V
• Logic Case Style: TQFP
• No. Of Pins: 100
• Operating Temperature Range: 0°C to +70°C
• Termination Type: SMD
• Transceiver Type: Interface
• Rohs Compliant: No

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8.0 Legacy Functional Blocks
8.3 UART FUNCTIONALITY (SP1 AND SP2)
8.3.1
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
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
30.
General Description
UART Mode Register Bank Overview
Figure 30. UART Mode Register Bank Architecture
Offset 07h
Offset 06h
Offset 05h
Offset 04h
Offset 02h
Offset 01h
Offset 00h
LCR/BSR
BANK 0
BANK 1
(Continued)
BANK 2
BANK 3
16550 Banks
126
Throughout
All Banks
Common
Register