tmp1940cyaf TOSHIBA Semiconductor CORPORATION, tmp1940cyaf Datasheet - Page 214

• Manufacturer Part Number: tmp1940cyaf
• Description: 32-bit Tx System Risc Tx19 Family
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Note:
Note 1: I/O Interface mode can not utilize the trigger output signal from the 8-bit timer TMRA0 as a serial
Note 2: This table assumes: fsys = fc, clock gear = fc/1, and prescaler clock source = fperiph/4
TA0REG0
fc (MHz)
19.6608
29.4912
24.576
10H
14H
1H
2H
3H
4H
5H
6H
8H
AH
I/O Interface Mode
the maximum baud rate is 2 Mbps (32 16). For the timing parameters, refer to Section 18.6,
Serial Channel Timing.
by the following equation:
This table assumes: fsys = fc, clock gear = fc/1, prescaler clock source = fperiph/4
clock.
Baud Rate
The external clock period must be greater than 16/fsys. Therefore, when fsys = 32 MHz,
When the 8-bit timer TMRA0 is used to generate a serial clock, the baud rate is determined
Baud Rate
(Programmed in BR0CR.BR0S[3:0])
When the TMRA0 timer trigger output is used and the TMRA0 input clock is T1
29.4912
230.4
115.2
46.08
23.04
11.52
76.8
57.6
38.4
28.8
14.4
When the baud rate generator is used and BR0CR.BR0ADDE = 0
external clock input clock
clock
Table 13.3 UART Baud Rate Selection
Divisor N
Table 13.4 UART Baud Rate Selection
frequency
TMP1940CYAF-172
24.576
A
C
1
2
4
8
0
5
1
2
3
4
6
38.4
19.2
192
9.6
96
64
48
32
24
12
TA0REG
selected
187.5
93.75
46.88
31.25
23.44
18.75
11.72
62.5
37.5
9.38
by
24
×
2
SYSCR0.PRC
×
fc (MHz)
16
When theTMRA0 clock source is T1.
(fc/4)
307.200
153.600
460.800
230.400
153.600
115.200
76.800
38.400
19.200
76.800
38.400
76.800
38.400
T0
Baud Rate Generator Input Clock
19.6608
153.6
30.72
15.36
76.8
51.2
38.4
25.6
19.2
7.68
9.6
K[1
(fc/16)
115.200
:
76.800
38.400
19.200
19.200
57.600
38.400
28.800
19.200
0]
TMP1940CYAF
T2
9.600
4.800
9.600
9.600
41.67
31.25
20.83
15.63
62.5
12.5
7.81
6.25
125
16
25
(fc/64)
19.200
28.800
14.400
T8
9.600
4.800
2.400
1.200
4.800
2.400
9.600
7.200
4.800
2.400
12.288
Unit: kbps
Unit: kbps
(fc/256)
19.2
9.6
4.8
96
48
32
24
16
12
6
T32
4.800
2.400
1.200
0.600
0.300
1.200
0.600
7.200
3.600
2.400
1.800
1.200
0.600