NHE6300ESB S L7XJ Intel, NHE6300ESB S L7XJ Datasheet - Page 708

• Manufacturer Part Number: NHE6300ESB S L7XJ
• Manufacturer: Intel

Specifications of NHE6300ESB S L7XJ

• Lead Free Status / RoHS Status: Compliant

Table 634. UART Clock Divider Support
Table 635. Baud Rate Examples
19.5.1.1 UART Feature List
Intel
DS
708
®
6300ESB I/O Controller Hub
Note: Some clock chips provide a 14.318x MHz clock output. The Intel
The serial port may operate in either FIFO or non-FIFO mode. In FIFO mode, a 16-byte
transmit FIFO holds data from the processor to be transmitted on the serial link and a
16-byte Receive FIFO buffers data from the serial link until read by the processor.
Each UART includes a programmable baud rate generator which is capable of dividing
the baud clock input by divisors of 1 to (2
internal transmitter and receiver logic. Each UART has complete modem control
capability and a processor interrupt system. Interrupts may be programmed to the
user's requirements, minimizing the computing required to handle the communications
link. Each UART may operate in a polled or an interrupt driven environment as
configured by software.
The baud rate generator input is a function of the UART_CLK and a configurable pre-
divide of 1, 8, or 26. See also SIU Configuration (address 29h) in
of the baud rate generator is 16 times the baud rate.
clock must use a 14.7456 MHz frequency; most clock chips do not provide this
frequency. An option will be to use the 48.0 MHz clock.
•
•
•
•
•
Adds or deletes standard asynchronous communications bits (start, stop, and
parity) to or from the serial data
Independently controlled transmit, receive, line status and data set interrupts
Programmable baud rate generator allows division of clock by 1 to (2
generates an internal 16X clock
Modem control functions (CTS#, RTS#, DSR#, DTR#, RI#, and DCD#)
Fully programmable serial-interface characteristics:
Generator Frequency
Desired Baud Rate
Pre-Divide Value
Clock Frequency
115200
19200
38400
56000
1200
2400
4800
7200
9600
Frequency 14.7456
UART Clock
14.7456 MHz
1.8432 MHz
Divisor
MHz
768
384
192
128
96
48
24
16
8
8
16
-1) and producing a 16X clock to drive the
1.8462 MHz
48.0 MHz
26
UART Clock Frequency 48 MHz
Divisor
2500
1250
625
417
312
156
78
54
26
Order Number: 300641-004US
®
Table
6300ESB ICH’s UART
Intel
®
656. The output
6300ESB ICH—19
16
November 2007
-1) and
% error
0.16
0.16
0.16
0.16
0.16
0.16
0.16
0.16
3