ST16C654CJ68 EXAR [Exar Corporation], ST16C654CJ68 Datasheet - Page 24

• Manufacturer Part Number: ST16C654CJ68
• Description: QUAD UART WITH 64-BYTE FIFO AND INFRARED (IrDA) ENCODER/DECODER
• Manufacturer: EXAR [Exar Corporation]

ST16C654/654D
Note *
Note *
Note *
Note *
Rev. 4.10
A2 A1 A0
X
0
1
1
1
1
3
4
2
5
Enhanced Register Set: Note *3
FIFO Ready Register: Note *4
: The Special register set is accessible only when LCR bit-7 is set to “1”.
: Enhanced Feature Register, Xon 1,2 and Xoff 1,2 are accessible only when LCR is set to “BF
: FIFORdy register is available only in 100 pin QFP packages and is selected by -CSRDY vice A0-A2.
: The value between the square brackets represents the register’s initialized HEX value.
1
0
0
1
1
X
0
0
1
0
1
X
Xoff-1[00]
Xoff-2[00]
Xon-1[00]
Xon-2[00]
Register
[Note *5]
FIFORdy
EFR[00]
RXRDY
BIT-7
bit-15
bit-15
Auto
CTS
bit-7
bit-7
D
RXRDY
bit-14
BIT-6
bit-14
RTS
Auto
bit-6
bit-6
C
RXRDY
Special
select
BIT-5
Char.
bit-13
bit-13
bit-5
bit-5
B
5-88
ISR, FCR
Bits 4-7,
Bits 4-5,
Bits 5-7
RXRDY
Enable
BIT-4
bit-12
bit-12
MCR
bit-4
bit-4
IER
A
TXRDY
Control
Cont-3
Tx,Rx
BIT-3
bit-11
bit-11
bit-3
bit-3
D
TXRDY
Control
Cont-2
Tx,Rx
BIT-2
bit-10
bit-10
bit-2
bit-2
C
TXRDY
Control
Cont-1
BIT-1
Tx,Rx
bit-1
bit-9
bit-1
bit-9
B
TXRDY
Control
Cont-0
Tx,Rx
BIT-0
bit-0
bit-0
bit-8
bit-8
A
Hex
”