SC16C654BIB64 PHILIPS [NXP Semiconductors], SC16C654BIB64 Datasheet - Page 21

no-image

SC16C654BIB64

Manufacturer Part Number
SC16C654BIB64
Description
5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.), with 64-byte FIFOs and infrared (IrDA) encoder/decoder
Manufacturer
PHILIPS [NXP Semiconductors]
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SC16C654BIB64
Manufacturer:
VISHAY
Quantity:
100
Part Number:
SC16C654BIB64
Manufacturer:
NXP/恩智浦
Quantity:
5 000
Part Number:
SC16C654BIB64,128
Manufacturer:
NXP Semiconductors
Quantity:
10 000
Part Number:
SC16C654BIB64,151
Manufacturer:
NXP Semiconductors
Quantity:
10 000
Part Number:
SC16C654BIB64,151
Manufacturer:
NXP/恩智浦
Quantity:
20 000
Part Number:
SC16C654BIB64,157
Manufacturer:
NXP Semiconductors
Quantity:
10 000
Philips Semiconductors
9397 750 14965
Product data sheet
SC16C654B/654DB sets the default baud rate table according to the state of the CLKSEL
pin. A logic 1 on CLKSEL will set the 1 clock default, whereas logic 0 will set the 4 clock
default table. Following the default clock rate selection during initialization, the rate tables
can be changed by the internal register MCR[7]. Setting MCR[7] to a logic 1 when
CLKSEL is a logic 1 provides an additional divide-by-4, whereas setting MCR[7] to a
logic 0 only divides by 1; see
achieved by selecting the proper divisor values for the MSB and LSB sections of baud rate
generator.
Programming the Baud Rate Generator Registers DLM (MSB) and DLL (LSB) provides a
user capability for selecting the desired final baud rate. The example in
two selectable baud rate tables available when using a 7.3728 MHz crystal.
Table 7:
Output baud rate
MCR[7] = 1
50
300
600
1200
2400
4800
9600
19.2 k
38.4 k
57.6 k
115.2 k
Fig 11. Baud rate generator circuitry
XTAL1
XTAL2
Baud rate generator programming table using a 7.3728 MHz clock
MCR[7] = 0
200
1200
2400
4800
9600
19.2 k
38.4 k
76.8 k
153.6 k
230.4 k
460.8 k
OSCILLATOR
CLOCK
LOGIC
5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 64-byte FIFOs
Rev. 02 — 20 June 2005
User
16 clock divisor
Decimal
2304
384
192
96
48
24
12
6
3
2
1
Table 7
DIVIDE-BY-1
DIVIDE-BY-4
and
LOGIC
LOGIC
Figure
HEX
900
180
C0
60
30
18
0C
06
03
02
01
SC16C654B/654DB
11. Customized baud rates can be
MCR[7] = 0
MCR[7] = 1
DLM
program value
(HEX)
09
01
00
00
00
00
00
00
00
00
00
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
GENERATOR
BAUD RATE
LOGIC
Table 7
DLL
program value
(HEX)
00
80
C0
60
30
18
0C
06
03
02
01
002aaa208
BAUDOUT
shows the
21 of 58

Related parts for SC16C654BIB64