BS85B12-3 HOLTEK [Holtek Semiconductor Inc], BS85B12-3 Datasheet - Page 143

• Manufacturer Part Number: BS85B12-3
• Description: Touch Key Flash Type 8-Bit MCU with LCD/LED Driver
• Manufacturer: HOLTEK [Holtek Semiconductor Inc]

BS85B12-3/BS85C20-3
Touch Key Flash MCU with LCD/LED Driver
Rev. 1.00
Bit 7
Bit 6
Bit 5~4
Bit 3
Bit 2~0
Name
POR
R/W
Bit
TBC Register
The purpose of the Time Base Interrupt is to provide an interrupt signal at fixed time periods. Their
clock sources originate from the internal clock source f
the division ratio of which is selected by programming the appropriate bits in the TBC register to
obtain longer interrupt periods whose value ranges. The clock source that generates f
controls the Time Base interrupt period, can originate from several different sources, as shown in the
System Operating Mode section.
TBON
R/W
TBON: TB0 and TB1 Control
TBCK: Select f
TB11~TB10: Select Time Base 1 Time-out Period
Undefined bit
This bit can be read or written by user software program.
TB02~TB00: Select Time Base 0 Time-out Period
7
0
0: disable
1: enable
0: f
1: f
0: 4096/f
1: 8192/f
2: 16384/f
3: 32768/f
0: 256/f
1: 512/f
2: 1024/f
3: 2048/f
4: 4096/f
5: 8192/f
6: 16384/f
7: 32768/f
TBC
SYS
/4
TB
TB
TB
TB
TB
TB
TB
TB
TBCK
TB
TB
TB
TB
R/W
6
0
TB
Clock
TB11
R/W
5
1
Time Base Structure
TB10
R/W
137
4
1
R/W
D3
TB
3
0
. This f
TB
input clock passes through a divider,
TB02
R/W
2
1
TB01
R/W
1
1
February 1, 2011
TB
, which in turn
TB00
R/W
0
1