peb20534 Infineon Technologies Corporation, peb20534 Datasheet - Page 44

• Manufacturer Part Number: peb20534
• Description: Dma Supported Serial Communication Controller With 4 Channels
• Manufacturer: Infineon Technologies Corporation

Table 5
Pin No.
76
87
168
179
78
89
170
181
Data Sheet
Symbol
TxCLK0
TxCLK1
TxCLK2
TxCLK3
TxD0
TxD1
TxD2
TxD3
Serial Communication Controller (SCC) Signals (cont’d)
Input (I)
Output (O)
I/O
O,
o/d
Function
Transmit Clock
The function of this pin depends on the
selected clock mode and the value of the
SSEL bit (CCR0 register). If programmed as
an input (bit CCR0.TOE=’0’), this pin supplies
either
– the transmit clock for the channel (clock
– a transmit strobe signal for the channel
If programmed as an output
(bit CCR0.TOE=’1’), this pin supplies the
transmit clock for the channel which is
generated either
– from the baud rate generator (clock mode 2,
– from the DPLL circuit (clock mode 3, 7;
In clock mode 5 an active-low tri-state control
signal marks the programmed transmit time-
slot if bit CCR2.TOE is set.
Transmit Data
Transmit data is shifted out via these pins.
They can be programmed to be either push-
pull or open drain output to support bus
configurations (register CCR1).
44
mode 0, 2, 4, 6; SSEL bit in CCR0 is reset),
or
(clock mode 1).
3, 6, 7; SSEL bit in CCR0 is set), or
SSEL bit in CCR0 is reset).
Pin Descriptions
PEB 20534
PEF 20534
2000-05-30