TMP91C824
91C824-111
2008-02-20
Table 3.7.3 PWM Cycle
at fc
=
33 MHz, fs
=
32.768 kHz
PWM Cycle
2
6
2
7
2
8
Select
System
Clock
<SYSCK>
Select
Prescaler
Clock
<PRCK1:0>
Gear Value
<GEAR2:0>
φ
T1
φ
T4
φ
T16
φ
T1
φ
T4
φ
T16
φ
T1
φ
T4
φ
T16
1 (fs)
XXX
15.6 ms
62.5 ms
250 ms
31.3 ms
125 ms
500 ms
62.5 ms
250 ms
1000 ms
000 (fc)
15.5
µ
s
62.1
µ
s
248.2
µ
s
31.0
µ
s
124.1
µ
s
496.5
µ
s 62.1
µ
s 248.2
µ
s 993.0
µ
s
001 (fc/2)
31.0
µ
s
124.1
µ
s
496.5
µ
s
62.1
µ
s
248.2
µ
s
993.0
µ
s 124.1
µ
s 496.5
µ
s 1986
µ
s
010 (fc/4)
32.1
µ
s
248.2
µ
s
993.0
µ
s
124.1
µ
s
496.5
µ
s
1986
µ
s 248.2
µ
s 993.0
µ
s 3972
µ
s
011 (fc/8)
124.1
µ
s
496.5
µ
s
1986
µ
s
248.2
µ
s
993.0
µ
s
3972
µ
s 496.5
µ
s 1986
µ
s 7944
µ
s
00
(f
FPH
)
100 (fc/16)
248.2
µ
s
993.0
µ
s
3972
µ
s
496.5
µ
s
1986
µ
s
7944
µ
s 993
µ
s 3972
µ
s 15888
µ
s
0 (fc)
10
(fc/16 clock)
XXX
248.2
µ
s
993.0
µ
s
3972
µ
s
496.5
µ
s
1986
µ
s
7944
µ
s 993
µ
s 3972
µ
s 15888
µ
s
XXX: Don’t care
(5)
Settings for each mode
Table 3.7.4 shows the SFR settings for each mode.
Table 3.7.4 Timer Mode Setting Registers
Register Name
TA01MOD
TA1FFCR
<Bit Symbol>
<TA01M1:0>
<PWM01:00>
<TA1CLK1:0>
<TA0CLK1:0>
TA1FFIS
Function
Timer Mode
PWM Cycle
Upper Timer Input
Clock
Lower Timer
Input Clock
Timer F/F Invert Signal
Select
8-bit timer
×
2 channels
00
−
Lower timer match
φ
T1,
φ
T16,
φ
T256
(00, 01, 10, 11)
External clock
φ
T1,
φ
T4,
φ
T16
(00, 01, 10, 11)
0: Lower timer output
1: Upper timer output
16-bit timer mode
01
−
−
External clock
φ
T1,
φ
T4,
φ
T16
(00, 01, 10, 11)
−
8-bit PPG
×
1 channel
10
−
−
External clock
φ
T1,
φ
T4,
φ
T16
(00, 01, 10, 11)
−
8-bit PWM
×
1 channel
11
2
6
, 2
7
, 2
8
(01, 10, 11)
−
External clock
φ
T1,
φ
T4,
φ
T16
(00, 01, 10, 11)
−
8-bit Timer
×
1 channel
11
−
φ
T1,
φ
T16,
φ
T256
(01, 10, 11)
−
Output disabled
−
: Don’t care