PSB21473FV13XT Infineon Technologies, PSB21473FV13XT Datasheet - Page 245

• Manufacturer Part Number: PSB21473FV13XT
• Manufacturer: Infineon Technologies

Specifications of PSB21473FV13XT

• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (min): 3.135V
• Operating Supply Voltage (max): 3.6V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 144
• Lead Free Status / RoHS Status: Compliant

Figure 15-9 Synchronous Mode of Serial Channel ASC_P
15.1.6.1 Synchronous Transmission
Synchronous transmission begins within 4 state times after data has been loaded into
S0TBUF provided that S0CON_R is set and S0CON_REN=’0’ (half-duplex, no
reception). Exception : in loopback mode (bit S0CON_LB set), S0CON_REN must be set
for reception of the transmitted byte. Data transmission is double buffered. When the
transmitter is idle, the transmit data loaded into S0TBUF is immediately moved to the
transmit shift register thus freeing S0TBUF for the next data to be sent. This is indicated
by the transmit buffer interrupt request line TBIR being activated. S0TBUF may now be
loaded with the next data, while transmission of the previous one is still going on. The
Data Sheet
Note: RXDI and RXDO are
TXD
concatenated in the
port logic to pin RXD.
RXDO
RXDI
f
MOD
0
MUX
1
R
REN
OEN
LB
Receive Buffer Reg.
Receive Shift
÷2
÷3
Register
RBUF
M=000
Shift Clock
BRS
Mux
Serial Port Control
The Asynchronous / Synchr. Serial Interface
B
Shift Clock
Internal Bus
245
f
DIV
13-Bit Reload Register
13-Bit Baudrate Timer
Transmit Buffer Reg.
OE
Transmit Shift
Register
TBUF
RIR
TIR
TBIR
EIR
f
BRT
Receive Int.
Request
Transmit Int.
Request
Transmit Buffer
Int. Request
Error Int.
Request
÷4
PSB 21473
f
BR
2003-03-31
INCA-D