tmp89fm42 TOSHIBA Semiconductor CORPORATION, tmp89fm42 Datasheet - Page 184

• Manufacturer Part Number: tmp89fm42
• Description: 8 Bit Microcontroller
• Manufacturer: TOSHIBA Semiconductor CORPORATION

14. 8-bit Timer Counter (TC0)
RA002
Timer counter 01 mode register
T01MOD
(0x002B)
Note 1: fcgck: Gear clock [Hz], fs: Low-frequency clock [Hz]
Note 2: Set T01MOD while the timer is stopped. Writing data into T01MOD is invalid during the timer operation.
Note 3: In the 8-bit timer/event modes, the TFF1 setting is invalid. In this mode, when the
Note 4: When EIN1 is set to "1" and the external clock input is selected as the source clock, the TCK1 setting is ignored.
function output pins in the port setting, the pins always output the "H" level.
Read/Write
Bit Symbol
After reset
TCM1
DBE1
TCK1
TFF1
EIN1
Timer F/F1 control
Double buffer control
Operation clock selection
Selection for using external source
clock
Operation mode selection
TFF1
R/W
7
1
DBE1
R/W
6
1
5
0
Page 170
000
001
010
011
100
101
110
111
00
01
10
11
0
1
0
1
0
1
Clear
Set
Disable the double buffer
Enable the double buffer
Select the internal clock as the source clock.
Select an external clock as the source clock. (the falling edge of the
TC01 pin)
8-bit timer/event counter modes
8-bit timer/event counter modes
8-bit pulse width modulation out-
put (PWM) mode
8-bit programmable pulse gener-
ate (PPG) mode
SYSCR1<DV9CK>
TCK1
R/W
4
0
fcgck/2
fcgck/2
T001CR<TCAS>="0"
fcgck/2
fcgck/2
fcgck/2
fcgck/2
fcgck/2
NORMAL1/2 or IDLE1/2 mode
fcgck
= "0"
(8-bit mode)
10
11
8
6
4
2
3
0
SYSCR1<DV9CK>
fcgck/2
fcgck/2
fcgck/2
fcgck/2
fcgck/2
PWM1
fcgck
EIN1
= "1"
fs/2
fs/2
R/W
2
0
16-bit timer/event counter modes
16-bit timer/event counter modes
12-bit pulse width modulation out-
put (PWM) mode
16-bit programmable pulse gener-
ate (PPG) mode
4
3
8
6
4
2
and
T001CR<TCAS>="1"
PPG1
(16-bit mode)
SLOW1/2 or SLEEP1
1
0
pins are set as the
TCM1
R/W
TMP89FM42
mode
fs/2
fs/2
fs/2
-
-
-
-
-
4
3
2
0
0