SC28L202 datasheet(47/77 Pages) PHILIPS

номер детали	SC28L202

подробное описание детали	Dual universal asynchronous receiver/transmitter DUART

PDF	77 Pages

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производитель	PHILIPS [NXP Semiconductors]

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Philips Semiconductors

Objective specification

SC28L202

Dual UART

2000 Feb 10

The following registers are unique for each Channel

Mode Register

MRn A

MRn B

R/W

Status Register

SR A

SR B

R only

Clock

Select

CSR A

CSR B

W only

Command

CR A

CR B

W only

Receiver

FIFO

RxFIFO A

RxFIFO B

R only

Transmitter

FIFO

TxFIFO A

TxFIFO B

W only

These registers support functions for both Channels

Input Port Change Register

IPCR

Auxiliary Control Register

ACR

Interrupt Status Register

ISR

Interrupt Mask Register

IMR

Counter Timer Upper Value

CTPU

Counter Timer Lower Value

CTPL

Counter Timer Preset Upper

CTPU

Counter Timer Preset Lower

CTPL

Input Port Register

IPR

Output Configuration Register

OPCR

Set Output Port

Bits

Reset Output Port

Bits

Table 8. Baud Rate Generator Characteristics

Crystal or Clock = 14.7456 MHz

NORMAL RATE

(BAUD)

ACTUAL 16X

CLOCK (KHz)

ERROR (%)

NORMAL RATE

(BAUD)

ACTUAL 16X

CLOCK (KHz)

ERROR (%)

0.8

2400

38.4

1.2

4800

76.8

110

1.759

–0.069

7200

115.2

134.5

2.153

0.059

9600

153.6

150

2.4

19.2K

307.2

200

3.2

38.4K

614.4

300

4.8

14.4K

230.4

600

9.6

28.8K

460.8

1050

16.756

–0.260

31.25

500.0

1.6

1200

19.2

57.6k

921.6

1800

28.8

115.2K

1843.2

2000

32.056

0.175

230.4K

3686.4

NOTE: Duty cycle of 16X clock is 50%

± 1%

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