SC16C850IBS,157 NXP Semiconductors, SC16C850IBS,157 Datasheet - Page 22

• Manufacturer Part Number: SC16C850IBS,157
• Description: IC UART SGL W/FIFO 32HVQFN
• Manufacturer: NXP Semiconductors

Specifications of SC16C850IBS,157

• Features: Programmable
• Number Of Channels: 1, UART
• Fifo's: 128 Byte
• Protocol: RS485
• Voltage - Supply: 2.5 V ~ 3.3 V
• 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
• 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

Table 8.
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
A2 A1 A0 Register
Enhanced feature register set
0
1
1
1
1
First extra feature register set
0
1
1
1
Second extra feature register set
0
1
1
1
The value shown represents the register’s initialized HEX value; X = not applicable.
Accessible only when LCR[7] is logic 0, and EFCR[2:0] are logic 000b.
This bit is only accessible when EFR[4] is set.
Baud rate registers accessible only when LCR[7] is logic 1.
Enhanced Feature Register, Xon1/Xon2 and Xoff1/Xoff2 are accessible only when LCR is set to 0xBF, and EFCR[2:1] are logic 0.
Second Special registers are accessible only when EFCR[0] = 1, and EFCR[2:1] are logic 0.
First extra feature register set is only accessible when EFCR[2:1] = 01b.
Second extra feature register set is only accessible when EFCR[2:1] = 10b.
1
0
0
1
1
1
0
1
1
1
0
1
1
0
0
1
0
1
0
0
0
1
0
0
0
1
SC16C850 internal registers
EFR
Xon1
Xon2
Xoff1
Xoff2
TXINTLVL
RXINTLVL
FLWCNTH
FLWCNTL
CLKPRES
RS485TIME 0x00
AFCR2
AFCR1
Default
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
[5]
[7]
[8]
[1]
Bit 7
Auto CTS
bit 7
bit 15
bit 7
bit 15
bit 7
bit 7
bit 7
bit 7
reserved
bit 7
reserved
reserved
…continued
Bit 6
Auto RTS
bit 6
bit 14
bit 6
bit 14
bit 6
bit 6
bit 6
bit 6
reserved
bit 6
reserved
reserved
Bit 5
special
character
select
bit 5
bit 13
bit 5
bit 13
bit 5
bit 5
bit 5
bit 5
reserved
bit 5
RS485 RTS
Invert
reserved
Bit 4
Enable
IER[7:4],
ISR[5:4],
FCR[5:4],
MCR[7:5]
bit 4
bit 12
bit 4
bit 12
bit 4
bit 4
bit 4
bit 4
reserved
bit 4
Auto RS485
RTS
Sleep
RXLow
Bit 3
Cont-3 TX,
RX Control
bit 3
bit 11
bit 3
bit 11
bit 3
bit 3
bit 3
bit 3
bit 3
bit 3
RS485
RTS/DTR
reserved
Bit 2
Cont-2 TX,
RX Control
bit 2
bit 10
bit 2
bit 10
bit 2
bit 2
bit 2
bit 2
bit 2
bit 2
Transmitter
Disable
RTS/CTS
mapped to
DTR/DSR
Bit 1
Cont-1 TX,
RX Control
bit 1
bit 9
bit 1
bit 9
bit 1
bit 1
bit 1
bit 1
bit 1
bit 1
Receiver
Disable
Software
Reset
Bit 0
Cont-0 TX,
RX Control
bit 0
bit 8
bit 0
bit 8
bit 0
bit 0
bit 0
bit 0
bit 0
bit 0
9-bit Enable R/W
TSR
Interrupt
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W