HD6432646 Hitachi, HD6432646 Datasheet - Page 487
HD6432646
Manufacturer Part Number
HD6432646
Description
(HD64F264x Series) 16-Bit Microcomputer
Manufacturer
Hitachi
Datasheet
1.HD6432646.pdf
(1155 pages)
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The BRR setting is found from the following formulas.
Asynchronous mode:
Clocked synchronous mode:
Where B: Bit rate (bit/s)
n
0
1
2
3
The bit rate error in asynchronous mode is found from the following formula:
N =
N =
Error (%) = {
N: BRR setting for baud rate generator (0 N 255)
ø: Operating frequency (MHz)
n: Baud rate generator input clock (n = 0 to 3)
Clock
ø
ø/4
ø/16
ø/64
(See the table below for the relation between n and the clock.)
64
8
2
2
2n–1
ø
ø
2n–1
CKS1
0
0
1
1
(N + 1) B 64 2
B
B
SMR Setting
ø
CKS0
0
1
0
1
10
10
6
6
10
– 1
– 1
6
2n–1
– 1
100
453
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