tmp1941af TOSHIBA Semiconductor CORPORATION, tmp1941af Datasheet - Page 206

• Manufacturer Part Number: tmp1941af
• Description: 32-bit Tx System Risc
• 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 2.5 Mbps (40 ÷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 = external clock input clock
The external clock period must be greater than 16/fsys. Therefore, when fsys = 40 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 φT1
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
clock
Table 13.3 UART Baud Rate Selection
Divisor N
Table 13.4 UART Baud Rate Selection
frequency
TMP1941AF-166
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 φT1.
(fc/4)
307.200
153.600
460.800
230.400
153.600
115.200
φT0
76.800
38.400
19.200
76.800
38.400
76.800
38.400
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
:
φT2
76.800
38.400
19.200
19.200
57.600
38.400
28.800
19.200
0]
9.600
4.800
9.600
9.600
TMP1941AF
41.67
31.25
20.83
15.63
62.5
12.5
7.81
6.25
125
16
25
(fc/64)
φT8
19.200
28.800
14.400
9.600
4.800
2.400
1.200
4.800
2.400
9.600
7.200
4.800
2.400
2003-03-27
12.288
Unit: kbps
Unit: kbps
(fc/256)
19.2
9.6
4.8
φT32
96
48
32
24
16
12
6
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