NEC PD78058FY(A) User Manual
Page 443
443
CHAPTER 19 SERIAL INTERFACE CHANNEL 2
Figure 19-6. Baud Rate Generator Control Register Format (2/2)
5-Bit Counter Source Clock Selection
TPS3 TPS2 TPS1 TPS0
n
MCS = 1
MCS = 0
0
0
0
0
f
XX
/2
10
f
XX
/2
10
(4.9 kHz)
f
X
/2
11
(2.4 kHz)
11
0
1
0
1
f
XX
f
X
(5.0 MHz)
f
X
/2
(2.5 MHz)
1
0
1
1
0
f
XX
/2
f
X
/2
(2.5 MHz)
f
X
/2
2
(1.25 MHz)
2
0
1
1
1
f
XX
/2
2
f
X
/2
2
(1.25 MHz)
f
X
/2
3
(625 kHz)
3
1
0
0
0
f
XX
/2
3
f
X
/2
3
(625 kHz)
f
X
/2
4
(313 kHz)
4
1
0
0
1
f
XX
/2
4
f
X
/2
4
(313 kHz)
f
X
/2
5
(156 kHz)
5
1
0
1
0
f
XX
/2
5
f
X
/2
5
(156 kHz)
f
X
/2
6
(78.1 kHz)
6
1
0
1
1
f
XX
/2
6
f
X
/2
6
(78.1 kHz)
f
X
/2
7
(39.1 kHz)
7
1
1
0
0
f
XX
/2
7
f
X
/2
7
(39.1 kHz)
f
X
/2
8
(19.5 kHz)
8
1
1
0
1
f
XX
/2
8
f
X
/2
8
(19.5 kHz)
f
X
/2
9
(9.8 kHz)
9
1
1
1
0
f
XX
/2
9
f
X
/2
9
(9.8 kHz)
f
X
/2
10
(4.9 kHz)
10
Other than above
Setting prohibited
Caution
If data is written to BRGC during the communication operation, the baud rate generator
output is disrupted and communication cannot be performed normally.
Therefore, do not write data to BRGC during a communication operation.
Remarks 1. f
X
:
Main system clock oscillation frequency
2. f
XX
:
Main system clock frequency (f
X
or f
X
/2)
3. MCS :
Bit 0 of oscillation mode selection register (OSMS)
4. n
:
Value set in TPS0 to TPS3 (1
≤
n
≤
11)
5. Figures in parentheses apply to operation with f
X
=5.0 MHz