C508_01 Datasheet, PDF (142/267 Pages) Infineon Technologies AG – 8-Bit CMOS Microcontroller

C508
On-Chip Peripheral Components
Compare Output in Trap State Register
The six lower bits of the COTRAP register define the values of Port 1 pins 2 to 7, which
are programmed to be used as compare outputs, when a trap state is entered. Bit 6 is
reserved and must always be written with a ‘0’. Bit 7 selects either one of the two block
commutation tables for rotate left that is provided.
Special Function Register COTRAP (Address F9_H)
Reset Value: 00_H
Bit No. MSB
7
F9_H BCTSEL
LSB
6
5
4
3
2
1
0
RES COUT2T CC2T COUT1T CC1T COUT0T CC0T
COTRAP
CAPCOM
Channel 2
CAPCOM
Channel 1
CAPCOM
Channel 0
Bit
BCTSEL
RES
CCxT, COUTxT
(x = 0-2)
Function
Block Commutation Table (Rotate Left) Select
BCTSEL = 0: The table for 60° phase angle will be selected.
BCTSEL = 1: The table for 0° phase angle will be selected.
Reserved
This bit must always be written with a ‘0’. Writing a ‘1’ to this
bit is prohibited.
Compare output level in trap condition
Bits at even positions (0, 2, 4) are assigned to the CCx compare
outputs. Bits at odd positions (1, 3, 5) are assigned to the
COUTx compare outputs.
CCxT, COUTxT = 0: If the compare timer is running, the
compare channel output CCx, COUTx
(x = 0-2) will be switched to 0 level in trap
state if the channel is enabled for trap
function.
CCxT, COUTxT = 1: If the compare timer is running, the
compare channel output CCx, COUTx
(x = 0-2) will be switched to 1 level in trap
state if the channel is enabled for trap
function.
User’s Manual
6-77
2001-05