PEB 20525 F V1.3 Infineon Technologies, PEB 20525 F V1.3 Datasheet - Page 209

• Manufacturer Part Number: PEB 20525 F V1.3
• Description: IC CTRLR PPP/HDLC 2-CH TQFP-100
• Manufacturer: Infineon Technologies
• Series: SEROCCO™r

Specifications of PEB 20525 F V1.3

• Function: Serial Optimized Communications Controller
• Interface: HDLC, PPP
• Number Of Circuits: 2
• Voltage - Supply: 3 V ~ 3.6 V
• Current - Supply: 50mA
• Power (watts): 150mW
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 100-LFQFP
• Includes: Bit Processor Functions, Serial Communication Controllers (SCCs)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: PEB20525FV1.3X; SP000007591

Data Sheet
RE
DRMBS
RMBS(11:0) Receive Maximum Buffer Size
Receive DMA Enable
Only valid if external DMA controller support is enabled.
Self-clearing command bit:
RE=’0’
RE=’1’
Disable Receive Maximum Buffer Size (RMBS) Check
Only valid if external DMA controller support is enabled.
DRMBS=’0’
DRMBS=’1’
Only valid if external DMA controller support is enabled.
The size of the receive buffer in host memory can be set up in this bit field
to ensure that request for DMA transfers are inhibited when the
maximum buffer size is reached. An RBF interrupt is generated (if
unmasked) to inform the CPU. If the external DMA controller supports
this function, it can be disabled by setting bit ’DRMBS’ to ’1’.
The DMA controller is not set up to forward receive data
into a buffer in memory.
Setting this bit to ’1’ enables the DMA support logic to
request the external DMA controller to transfer receive
data when available in RFIFO.
Evaluation of bit field RMBS(11:0) is enabled.
Evaluation of bit field RMBS(11:0) is disabled.
5-209
Register Description (RMBSH)
PEB 20525
PEF 20525
2000-09-14