tmp88ch40img TOSHIBA Semiconductor CORPORATION, tmp88ch40img Datasheet - Page 56

• Manufacturer Part Number: tmp88ch40img
• Description: 8 Bit Microcontroller
• Manufacturer: TOSHIBA Semiconductor CORPORATION

7.1 Time Base Timer
7. Time Base Timer (TBT)
Time Base Timer Control Register
(00036H)
TBTCR
Time Base Timer is controled by Time Base Timer control register (TBTCR).
Note 1: fc; High-frequency clock [Hz], *; Don't care
Note 2: Always set "0" in bit4 to bit7 on TBTCR register.
TBTEN
TBTCK
7
0
Time Base Timer
Enable / Disable
Time Base Timer interrupt
Frequency select : [Hz]
Table 7-1 Time Base Timer Interrupt Frequency ( Example : fc = 20.0 MHz )
6
TBTCK
000
001
010
011
100
101
110
111
0
5
4
0
0: Disable
1: Enable
DV1CK = 0
39063.00
Time Base Timer Interrupt Frequency [Hz]
000
001
010
011
100
101
110
1220.70
2441.40
4882.83
9765.63
111
305.18
2.38
9.53
TBTEN
Page 48
3
NORMAL, IDLE Mode
2
DV1CK=0
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
23
21
16
14
13
12
11
9
TBTCK
1
NORMAL, IDLE Mode
DV1CK = 1
19531.25
1220.70
2441.40
4882.83
153.50
610.35
1.20
4.78
0
(Initial Value: 0000 0000)
DV1CK=1
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
24
22
17
15
14
13
12
10
TMP88CH40IMG
R/W