tmp88cs38ng TOSHIBA Semiconductor CORPORATION, tmp88cs38ng Datasheet - Page 55

• Manufacturer Part Number: tmp88cs38ng
• Description: Cmos 8-bit Microcontroller
• Manufacturer: TOSHIBA Semiconductor CORPORATION

TBTCR
(00036H)
Note 1: fc: High-frequency clock [Hz], *: Don’t care
Note 2: TBTCR is a write-only register and must not be used with any of read-modify-write instruction.
Note 3: Set bit7 and 4 in TBTCR to “0”.
“0”
7
Table 2.3.1 Time Base Timer Interrupt Frequency (Example: at fc = 16 MHz)
TBTEN
TBTCK
TBTCK
Figure 2.3.2 Time Base Timer and Divider Output Control Register
000
001
010
011
100
101
110
111
6
−
Time base timer
enable/disable
Time base timer interrupt
frequency select
5
−
“0”
4
Time Base Timer Interrupt Frequency [Hz]
TBTEN
DV1CK = 0
31250
3
1953.12
3906.25
7812.50
88CS38-55
244.14
976.56
1.90
7.62
NORMAL, IDLE mode
0: Disable
1: Enable
000
001
010
011
100
101
110
111
2
DV1CK = 0
TBTCK
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
1
NORMAL, IDLE mode
23
21
16
14
13
12
11
9
[Hz]
0
DV1CK = 1
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
fc/2
TMP88CS38/CM38A/CP38A
DV1CK = 1
24
22
17
15
14
13
12
10
15625
1953.12
3906.25
[Hz]
122.07
488.28
976.56
(Initial value: 0**0 0***)
0.95
3.81
Write
only
2007-09-12