SDA6000 Datasheet, PDF (181/380 Pages) Infineon Technologies AG – Teletext Decoder with Embedded 16-bit Controller

SDA 6000
T2CON
T4CON
Timer 2/4 Control Register
15 14 13 12 11 10 9 8 7 6 5 4 3
Tx
RDIR
Tx
CH
DIR
Tx
EDG
E
Tx
IR
DIS
0
Tx
RC
Tx
UDE
Tx
UD
TxR
TxM
rh rwh rwh rw
r
rw rw rw rw
rw
Peripherals
210
TxI
rw
Field
TxI
TxM
TxR
TxUD
TxUDE
Bits Type Description
[2:0] rw
Timer x Input Parameter Selection
Timer mode see Table 7-12 for encoding
Gated Timer see Table 7-12 for encoding
Counter mode see Table 7-13 for encoding
Incremental Interface mode see Table 7-14 for
encoding
[5:3] rw
Timer x Mode Control (Basic Operating Mode)
000 Timer Mode
001 Counter Mode
010 Gated Timer with Gate active low
011 Gated Timer with Gate active high
100 Reload Mode
101 Reserved. Do not use this combination!
110 Incremental Interface Mode (Rotation
detection)
111 Incremental Interface Mode (Edge detection)
[6]
rw Timer x Run Bit
0 Timer/Counter x stops
1 Timer/Counter x runs
[7]
rw Timer x Up/Down Control
(when TxUDE = ‘0’)
0 Counting ‘Up’
1 Counting ‘Down’
[8]
rw Timer x External Up/Down Enable
0 Counting direction is internally controlled by
SW
1 Counting direction is externally controlled by
line TxEUD
Users Manual
7 - 30
2000-06-15