xr16m670 Exar Corporation, xr16m670 Datasheet - Page 12

• Manufacturer Part Number: xr16m670
• Description: 1.62v To 3.63v High Performance Uart With 32-byte Fifo
• Manufacturer: Exar Corporation

XR16M670
1.62V TO 3.63V HIGH PERFORMANCE UART WITH 32-BYTE FIFO
F
IGURE
Output Data
XTAL1
XTAL2
Required
1000000
100000
115200
153600
200000
225000
230400
250000
300000
400000
460800
500000
750000
921600
10000
19200
25000
28800
38400
50000
57600
75000
Rate
2400
4800
9600
400
7. B
T
ABLE
AUD
Crystal
Buffer
3: T
Osc
R
D
IVISOR FOR
ATE
YPICAL DATA RATES WITH A
/
(Decimal)
52.0833
39.0625
26.0417
13.0208
156.25
78.125
9.7656
6.6667
6.5104
3.2552
1.6276
Clock
312.5
3750
3.75
625
150
G
7.5
1.5
60
30
20
15
6
5
3
2
ENERATOR
16x
Divide by 4
Divide by 1
Prescaler
Prescaler
O
BTAINABLE IN
312 8/16
156 4/16
78 2/16
52 1/16
39 1/16
26 1/16
D
9 12/16
6 11/16
3 12/16
1 10/16
7 8/16
6 8/16
3 4/16
1 8/16
M670
3750
IVISOR
625
150
60
30
20
15
13
MCR Bit 7= 0
MCR Bit -7=1
6
5
3
2
(default)
24 MH
-
DLD[7]=1
DLD[7]=0
DLM P
V
ALUE
Z CRYSTAL OR EXTERNAL CLOCK AT
12
E
ROGRAM
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
(HEX)
DLD[5:0]
DLD[5:0]
DLM
DLM
DLL
DLL
DLL P
V
ALUE
A6
9C
4E
3C
1E
1A
71
38
96
34
27
14
D
F
9
7
6
6
6
5
3
3
3
2
1
1
ROGRAM
(HEX)
DLD[6]
0
1
DLD P
V
ALUE
16X S
C
C
ROGRAM
0
0
8
4
0
2
0
1
1
0
1
0
0
0
8
B
8
0
0
4
0
0
A
8
(HEX)
Sampling Rate Clock
Sampling Rate Clock
16X or 8X or 4X
16X or 8X or 4X
to Transmitter
AMPLING
to Receiver
D
ATA
R
ATE
REV. 1.0.0
0.04
0.08
0.16
0.16
0.31
0.16
0.16
0.16
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
E
RROR
(%)