tmp88cu74 TOSHIBA Semiconductor CORPORATION, tmp88cu74 Datasheet - Page 54

• Manufacturer Part Number: tmp88cu74
• Description: Cmos 8-bit Microcontroller
• Manufacturer: TOSHIBA Semiconductor CORPORATION

TBTCR
(00036H)
Table 2.3.1 Time Base Timer Interrupt Frequency (Example: fc = 12.5 MHz, fs = 32.8 kHz)
TBTCK
Note: fc: High-frequency clock [Hz], fs: Low-frequency clock [Hz], *: Don’t care
000
001
010
011
100
101
110
111
(DVOEN)
TBTEN
TBTCK
7
24414.06
DV1CK = 0
1525.88
3051.76
6103.52
Time base timer
enable/disable
Time base timer interrupt
frequency select [Hz]
6
190.73
762.94
(DVOCK)
1.49
5.96
Figure 2.3.2 Time Base Timer Control Register
DV7CK = 0
5
(DV7CK)
12207.03
DV1CK = 1
1525.88
3051.76
4
NORMAL1/2, IDLE1/2 Mode
381.47
762.94
95.37
0.75
2.98
Time Base Timer Interrupt Frequency [Hz]
TBTEN
3
88CU74-54
0: Disable
1: Enable
000
001
010
011
100
101
110
111
DV1CK = 0
2
DV1CK = 0 DV1CK = 1 DV1CK = 0 DV1CK = 1
16384
1024
2048
4096
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
128
512
fc/2
DV7CK = 0
1
4
TBTCK
23
21
16
14
13
12
11
9
NORMAL1/2, IDLE1/2 mode
1
DV7CK = 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
0
DV1CK = 1
16384
1024
2048
4096
128
512
fs/2
fs/2
1
4
fs/2
fs/2
fs/2
fs/2
fs/2
fs/2
(Initial value: 0**0 0***)
DV7CK = 1
15
13
8
6
5
4
3
fs/2
fs/2
fs/2
fs/2
fs/2
fs/2
fs/2
fs/2
SLEEP Mode
15
13
8
6
5
4
3
SLOW,






1
4
SLEEP
SLOW,
mode
fs/2
fs/2
µ
µ
µ
µ
µ
µ
TMP88CU74
15
13
2007-10-19
2003-02-17
R/W