Compact Type Tm Register Description - Holtek HT66F20 Manual

HT66F20/HT66F30/HT66F40/HT66F50/HT66F60
HT66FU30/HT66FU40/HT66FU50/HT66FU60
A/D Flash MCU with EEPROM

Compact Type TM Register Description

Overall operation of the Compact TM is controlled using six registers. A read only register pair
exists to store the internal counter 10-bit value, while a read/write register pair exists to store the
internal 10-bit CCRA value. The remaining two registers are control registers which setup the
different operating and control modes as well as the three CCRP bits.
Register
Name
7
TMnC0 TnPAU
TMnC� TnM�
TMnDL D�
TMnDH —
TMnAL D�
TMnAH —
TMnDL Register
Bit 7
Name D�
R/W R
POR 0
TMnDL: TMn Counter Low Byte Register bit 7~bit 0
Bit 7~0
TMn 10-bit Counter bit 7~bit 0
TMnDH Register
Bit 7
Name —
R/W —
POR —
Bit 7~2 Unimplemented, read as "0"
Bit 1~0 TMnDH: TMn Counter High Byte Register bit 1~bit 0
TMn 10-bit Counter bit 9~bit 8
TMnAL Register
Bit 7
Name D�
R/W R/W
POR 0
Bit 7~0 TMnAL: TMn CCRA Low Byte Register bit 7~bit 0
TMn 10-bit CCRA bit 7~bit 0
TMnAH Register
Bit 7
Name —
R/W —
POR —
Bit 7~2 Unimplemented, read as "0"
Bit 1~0 TMnAH: TMn CCRA High Byte Register bit 1~bit 0
TMn 10-bit CCRA bit 9~bit 8
Rev. 2.50
Bit
6 5 4
TnCK2 TnCK� TnCK0
TnM0 TnIO� TnIO0
D6 D5 D4
— — —
D6 D5 D4
— — —
Compact TM Register List (n=0 or 3)
6 5 4
D6 D5 D4
R R R
0 0 0
6 5 4
— — —
— — —
— — —
6 5 4
D6 D5 D4
R/W R/W R/W
0 0 0
6 5 4
— — —
— — —
— — —
��3
3 2 1
TnON TnRP2 TnRP�
TnOC TnPOL TnDPX
D3 D2 D�
— — D9
D3 D2 D�
— — D9
3 2 1
D3 D2 D�
R R R
0 0 0
3 2 1
— — D9
— — R
— — 0
3 2 1
D3 D2 D�
R/W R/W R/W
0 0 0
3 2 1
— — D9
— — R/W
— — 0
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0
TnRP0
TnCCLR
D0
D8
D0
D8
0
D0
R
0
0
D8
R
0
0
D0
R/W
0
0
D8
R/W
0