PSB21373HV11XT Infineon Technologies, PSB21373HV11XT Datasheet - Page 169

• Manufacturer Part Number: PSB21373HV11XT
• Manufacturer: Infineon Technologies
• Type: PCMr

Specifications of PSB21373HV11XT

• Number Of Channels: 1
• Number Of Adc's: 1
• Number Of Dac's: 1
• Number Of Adc Inputs: 1
• Pin Count: 44
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

Data Sheet
7.1
7.1.1
RFIFO
A read access to any address within the range 00h-1Fh gives access to the “current”
FIFO location selected by an internal pointer which is automatically incremented after
each read access. This allows for the use of efficient “move string” type commands by
the microcontroller.
The RFIFO contains up to 32 bytes of received data.
After an ISTAH.RPF interrupt, a complete data block is available. The block size can be
4, 8, 16, 32 bytes depending on the EXMR.RFBS setting.
After an ISTAH.RME interrupt, the number of received bytes can be obtained by reading
the RBCL register.
7.1.2
XFIFO
A write access to any address within the range 00-1F
location selected by an internal pointer which is automatically incremented after each
write access. This allows the use of efficient “move string” type commands by the
microcontroller.
Depending on EXMR.XFBS up to 16 or 32 bytes of transmit data can be written to the
XFIFO following an ISTAH.XPR interrupt.
7
7
HDLC Control and C/I Registers
RFIFO - Receive FIFO
XFIFO - Transmit FIFO
Transmit data
Receive data
169
H
gives access to the “current” FIFO
0
0
WR (00
RD (00
PSB 21373
2002-05-13
H
H
-1F
-1F
H
H
)
)