xr16v554 Exar Corporation, xr16v554 Datasheet - Page 35

• Manufacturer Part Number: xr16v554
• Description: 2.25v To 3.6v Quad Uart With 16-byte Fifo
• Manufacturer: Exar Corporation

REV. 1.0.2
F
F
IGURE
IGURE
A0-A7
D0-D7
R/W#
RXRDY#
RX
INT
IOR#
(Reading data
out of RHR)
CS#
17. 68 M
18. R
ECEIVE
ODE
R
Start
(M
Bit
EADY
T
OTOROLA
RWS
T
ADS
& I
D0:D7
NTERRUPT
) D
Valid Address
ATA
Stop
T
Bit
T
CSL
B
T
Valid Data
RR
T
in RHR
US
WDS
1 Byte
Ready
Active
IMING
T
T
Data
SSR
SSR
W
RITE
[N
T
ON
RWH
T
D0:D7
35
IMING FOR
-FIFO M
T
T
WDH
ADH
2.25V TO 3.6V QUAD UART WITH 16-BYTE FIFO
T
CSD
ODE
C
T
RR
HANNELS
in RHR
1 Byte
]
Ready
Active
T
T
Data
FOR
SSR
SSR
C
HANNELS
A-D
Valid Address
D0:D7
A-D
Valid Data
XR16V554/554D
T
RR
T
in RHR
1 Byte
Ready
Active
SSR
T
Data
SSR
68Write
RXNFM