SC16C652BIBS,157 NXP Semiconductors, SC16C652BIBS,157 Datasheet - Page 12

• Manufacturer Part Number: SC16C652BIBS,157
• Description: IC UART DUAL W/FIFO 32HVQFN
• Manufacturer: NXP Semiconductors

Specifications of SC16C652BIBS,157

• Features: 2 Channels
• Number Of Channels: 2, DUART
• Fifo's: 32 Byte
• Voltage - Supply: 2.5V, 3.3V, 5V
• With Auto Flow Control: Yes
• With Irda Encoder/decoder: Yes
• With False Start Bit Detection: Yes
• With Modem Control: Yes
• With Cmos: Yes
• Mounting Type: Surface Mount
• Package / Case: 32-VFQFN Exposed Pad
• Transmitter And Receiver Fifo Counter: Yes
• Data Rate: 5Mbps
• Operating Supply Voltage (max): 5.5V
• Mounting: Surface Mount
• Pin Count: 32
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 568-2046; 935276387157; SC16C652BIBS

Philips Semiconductors
SC16C652B_4
Product data sheet
6.10 Loop-back mode
6.9 DMA operation
Table 6:
The SC16C652B FIFO trigger level provides additional flexibility to the user for block
mode operation. The user can optionally operate the transmit and receive FIFOs in the
DMA mode (FCR[3]). The DMA mode affects the state of the RXRDY and TXRDY output
pins.
Table 7:
Table 8:
The internal loop-back capability allows on-board diagnostics. In the loop-back mode, the
normal modem interface pins are disconnected and reconfigured for loop-back internally
(see
In the loop-back mode, the transmitter output (TX) and the receiver input (RX) are
disconnected from their associated interface pins, and instead are connected together
internally. The CTS, DSR, CD, and RI are disconnected from their normal modem control
inputs pins, and instead are connected internally to RTS, DTR, MCR[3] (OP2) and
Output
baud rate
(bit/s)
50
75
110
150
300
600
1200
2400
3600
4800
7200
9600
19.2 k
38.4 k
57.6 k
115.2 k
Non-DMA mode
1 = FIFO empty
0 = at least 1 byte in FIFO
Non-DMA mode
1 = at least 1 byte in FIFO
0 = FIFO empty
Figure
Table 7
Baud rate generator programming table using a 1.8432 MHz clock
Effect of DMA mode on state of RXRDY pin
Effect of DMA mode on state of TXRDY pin
5). MCR[3:0] register bits are used for controlling loop-back diagnostic testing.
and
Output
16 clock divisor
(decimal)
2304
1536
1047
768
384
192
96
48
32
24
16
12
6
3
2
1
Table 8
Rev. 04 — 1 September 2005
show this.
DMA mode
0-to-1 transition when FIFO empties
1-to-0 transition when FIFO reaches trigger level, or time-out occurs
DMA mode
0-to-1 transition when FIFO becomes full
1-to-0 transition when FIFO goes below trigger level
Dual UART with 32-byte FIFOs and IrDA encoder/decoder
Output
16 clock divisor
(HEX)
900
600
417
300
180
C0
60
30
20
18
10
0C
06
03
02
01
DLM
program value
(HEX)
09
06
04
03
01
00
00
00
00
00
00
00
00
00
00
00
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
SC16C652B
DLL
program value
(HEX)
00
00
17
00
80
C0
60
30
20
18
10
0C
06
03
02
01
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