HT68F14 HOLTEK [Holtek Semiconductor Inc], HT68F14 Datasheet - Page 64

• Manufacturer Part Number: HT68F14
• Description: Enhanced I/O Flash Type MCU
• Manufacturer: HOLTEK [Holtek Semiconductor Inc]

HT68F13/HT68F14/HT68F15
Enhanced I/O Flash Type MCU
Rev. 1.10
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3~2
Bit 1
Bit 0
Programming Considerations
Name
POR
R/W
Bit
TMPC Register - HT68F15
The TM Counter Registers and the Capture/Compare CCRA and CCRB registers, being either 10-bit
or 16-bit, all have a low and high byte structure. The high bytes can be directly accessed, but as the low
bytes can only be accessed via an internal 8-bit buffer, reading or writing to these register pairs must be
carried out in a specific way. The important point to note is that data transfer to and from the 8-bit
buffer and its related low byte only takes place when a write or read operation to its corresponding high
byte is executed.
As the CCRA and CCRB registers are implemented in the way shown in the following diagram and
accessing these register pairs is carried out in a specific way as described above, it is recommended to
use the MOV instruction to access the CCRA and CCRB low byte registers, named TMxAL and
TMxBL, using the following access procedures. Accessing the CCRA or CCRB low byte registers
without following these access procedures will result in unpredictable values.
T1ACP0
T1ACP0: TP1A pin enable control
0: disable
1: enable
T1BCP2: TP1B_2 pin enable control
0: disable
1: enable
T1BCP1: TP1B_1 pin enable control
0: disable
1: enable
T1BCP0: TP1B_0 pin enable control
0: disable
1: enable
Unimplemented, read as 0
T0CP1: TP0_1 pin enable control
0: disable
1: enable
T0CP0: TP0_0 pin enable control
0: disable
1: enable
R/W
7
1
T1BCP2
R/W
6
0
T1BCP1
TM Counter Register (Read only)
TM CCRA Register (Read/Write)
TM CCRB Register (Read/Write)
R/W
TMxDL
TMxAL
TMxBL
5
0
Buffer
8-bit
T1BCP0
TMxDH
TMxAH
TMxBH
64
R/W
4
1
Data
Bus
3
2
T0CP1
R/W
1
0
February 9, 2011
T0CP0
R/W
0
1