tmp19a44fda TOSHIBA Semiconductor CORPORATION, tmp19a44fda Datasheet - Page 305

• Manufacturer Part Number: tmp19a44fda
• Description: 32bit Tx System Risc
• Manufacturer: TOSHIBA Semiconductor CORPORATION

16-bit Timer/Event Counters (TMRBs)
11.3 Description of Operations for Each Circuit
peripheral
0 (fgear)
<FPSEL>
Release
clock
11.3.1
There is a 4-bit prescaler for acquiring the TMRB0 source clock. The prescaler input clock φT0 is
fperiph/2, fperiph/4, fperiph/8 or fperiph/16 selected by SYSCR0<PRCK2:0> in the CG. The peripheral
clock, fperiph, is either fgear, a clock selected by SYSCR1<FPSEL> in the CG, or fc, which is a clock
before it is divided by the clock gear.
The operation or the stoppage of a prescaler is set with TB0RUN<TB0PRUN> where writing "1" starts
counting and writing "0" clears and stops counting. Table 11.3shows prescaler output clock resolutions.
Prescaler
Clock gear
<GEAR2:0>
111(fc/16)
100(fc/2)
101(fc/4)
110(fc/8)
000 (fc)
value
(fsys)
Table 11.3 Prescaler Output Clock Resolutions (
000(fperiph/2)
001(fperiph/4)
010(fperiph/8)
011(fperiph/16)
100(fperiph/32)
000(fperiph/2)
001(fperiph/4)
010(fperiph/8)
011(fperiph/16)
100(fperiph/32)
000(fperiph/2)
001(fperiph/4)
010(fperiph/8)
011(fperiph/16)
100(fperiph/32)
000(fperiph/2)
001(fperiph/4)
010(fperiph/8)
011(fperiph/16)
100(fperiph/32)
000(fperiph/2)
001(fperiph/4)
010(fperiph/8)
011(fperiph/16)
100(fperiph/32)
100(fperiph/32)
Select prescaler
<PRCK2:0>
clock
TMP19A44(rev1.3) 11-7
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
2
3
4
5
6
3
4
5
6
7
4
5
6
7
8
5
6
7
8
9
6
7
8
9
10
6
(0.05μs)
(0.1μs)
(0.2μs)
(0.4μs)
(0.8μs)
(0.1μs)
(0.2μs)
(0.4μs)
(0.8μs)
(1.6μs)
(0.2μs)
(0.4μs)
(0.8μs)
(1.6μs)
(3.2μs)
(0.4μs)
(0.8μs)
(1.6μs)
(3.2μs)
(6.4μs)
(0.8μs)
(1.6μs)
(3.2μs)
(6.4μs)
(0.8μs)
(12.8μs)
φT1
Prescaler output clock resolutions
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fsys = 80MHz)
4
5
6
7
8
5
6
7
8
9
6
7
8
9
10
7
8
9
10
11
8
9
10
11
12
8
(0.2μs)
(0.4μs)
(0.8μs)
(1.6μs)
(3.2μs)
(0.4μs)
(0.8μs)
(1.6μs)
(3.2μs)
(6.4μs)
(0.8μs)
(1.6μs)
(3.2μs)
(6.4μs)
(1.6μs)
(3.2μs)
(6.4μs)
(3.2μs)
(6.4μs)
(3.2μs)
(12.8μs)
(12.8μs)
(25.6μs)
(12.8μs)
(25.6μs)
(51.2μs)
φT4
TMP19A44
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
6
7
8
9
10
7
8
9
10
11
8
9
10
11
12
9
10
11
12
13
10
11
12
13
14
10
(0.8μs)
(1.6μs)
(3.2μs)
(6.4μs)
(1.6μs)
(3.2μs)
(6.4μs)
(3.2μs)
(6.4μs)
(6.4μs)
(12.8μs)
(12.8μs)
(25.6μs)
(12.8μs)
(25.6μs)
(51.2μs)
(12.8μs)
(25.6μs)
(51.2μs)
(102.4μs)
(12.8μs)
(25.6μs)
(51.2μs)
(102.4μs)
(204.8μs)
(12.8μs)
φT16
2010-04-01