MOD5234-100IR NetBurner Inc, MOD5234-100IR Datasheet - Page 549

• Manufacturer Part Number: MOD5234-100IR
• Description: MOD5234 10/100 ETHERNET MODULE
• Manufacturer: NetBurner Inc
• Type: Controllers & Processorsr

Specifications of MOD5234-100IR

• Interface: I²C, SPI, UART
• Voltage - Supply: 2.5V
• Mounting Type: Surface Mount
• Package / Case: Module
• Product: Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Format: -
• Baud Rates: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: Q4483564

26.4
This section describes operation of the clock source generator, transmitter, and receiver.
26.4.1
The internal bus clock serves as the basic timing reference for the clock source generator logic,
which consists of a clock generator and a programmable 16-bit divider dedicated to each UART.
The clock generator might not produce standard baud rates if the internal bus clock is used, so
enable the 16-bit divider.
26.4.1.1 Programmable Divider
As
The choice of DTIN or internal bus clock is programmed in the UCSR.
Freescale Semiconductor
Figure 26-17
• An external clock signal on the DTnIN pin. When not divided, DTnIN provides a
• The internal bus clock supplies an asynchronous clock source that is divided by 32 and then
synchronous clock mode; when divided by 16, it is asynchronous.
divided by the 16-bit value programmed in UBG1n and UBG2n. See
“UART Baud Rate Generator Registers
Bits
7–1
0
Figure 26-16. UART Output Port Command Registers (UOP1n/UOP0n)
Functional Description
Transmitter/Receiver Clock Source
Name
shows, the UARTn transmitter and receiver can use the following clock sources:
RTS
Address
—
Reset
W
R
Table 26-12. UOP1/UOP0 Field Descriptions
Reserved, should be cleared.
Output port output. Controls assertion (UOP1)/negation (UOP0) of UnRTS output.
0 Not affected.
1 Asserts UnRTS in UOP1. Negates UnRTS in UOP0.
0
0
7
UART0: IPSBAR + 0x0238 (UOP1), IPSBAR + 0x023C (UOP0)
UART1: IPSBAR + 0x0278 (UOP1), IPSBAR + 0x027C (UOP0)
UART2: IPSBAR + 0x02B8 (UOP1) IPSBAR + 0x02BC (UOP0)
MCF5235 Reference Manual, Rev. 2
0
0
6
0
0
5
(UBG1n/UBG2n).”
0
0
4
Description
0
0
3
2
0
0
0
0
1
RTS
0
0
Section 26.3.11,
Functional Description
26-17